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【多选题】
维管射线和髓射线的主要区别是( )
A.
维管射线是射线，数目不固定
B.
维管射线是次生结构，数目不固定
C.
维管射线是由维管形成层产生的次生结构，而髓射线在结构中就有
D.
维管射线是次生结构，位于维管束之间
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参考答案：
举一反三
【单选题】患者男性,25岁,左上肢烧伤,创面有大水泡,剧痛,其烧伤深度为
A.
Ⅰ度
B.
浅Ⅱ度
C.
深Ⅱ度
D.
Ⅲ度
E.
深Ⅱ度及Ⅲ度
查看完整题目与答案
【简答题】Please paraphrase the following sentences: It was only that one day I happened to be walking behind them, and the curious up-and-down motion of a load of wood drew my attention to the human being bene...
查看完整题目与答案
【简答题】• Suppose that one day you are going to do business with a westerner. You'd like to have dinner with him and show him the beautiful sight of your city. But in the westerner's perspective, it has nothi...
查看完整题目与答案
【判断题】一般工业用气较为均衡,民用气波动较大。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Oil in this world will be exhausted one day, in the future, but that may not come so soon as we would suppose.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】I'm not such a fool as to imagine I might stand a chance now that you are so above me. But don't suppose I'm content to stay nobody all my life. One day I will leave you. You can be sure of that. ...
A.
Hidden Figures
B.
The Blind Side
C.
Green Book
D.
Far From The Madding Crowd
查看完整题目与答案
【单选题】Given the following Classical-type table shows the number of days of labor input required to obtain one unit of output of each of the three commodities in each of the two countries:【图片】Suppose that th...
A.
export good T and import goods X and Y.
B.
export good Y and import goods T and X.
C.
export goods T and X and import good Y.
D.
export goods X and Y and import good T.
查看完整题目与答案
【单选题】Suppose that for the past two months, you have studied economics one hour a day. You now decide to study economics two hours a day. For the past two months, ( ).
A.
your marginal cost of studying economics for an hour must have exceeded its marginal benefit
B.
the marginal cost of studying economics must have fallen
C.
your marginal benefit from studying economics an hour must have been greater than its marginal cost
D.
the opportunity cost of studying economics must have risen.
查看完整题目与答案
【简答题】• I'm not such a fool as to imagine I might stand a chance now that you are so above me. But don't suppose I 'm content to stay nobody all my life. One day I will leave you. You can be sure of tha...
查看完整题目与答案
【单选题】Suppose that for the past two months, you have studied economics one hour a day. You now decide to study economics two hours a day. For the past two months, ________. (假设在过去的两个月里,你每天都在学习经济学。你现在决定每天两个...
A.
your marginal cost of studying economics for an hour must have exceeded its marginal benefit你经济学一小时的边际成本必须超过其边际收益
B.
the marginal cost of studying economics must have fallen研究经济学的边际成本必须下降
C.
your marginal benefit from studying economics an hour must have been greater than its marginal cost小时学习经济学的边际效益必须大于其边际成本
D.
the opportunity cost of studying economics must have risen.学习经济学的机会成本必须上升。
查看完整题目与答案
相关题目：
【单选题】患者男性,25岁,左上肢烧伤,创面有大水泡,剧痛,其烧伤深度为
A.
Ⅰ度
B.
浅Ⅱ度
C.
深Ⅱ度
D.
Ⅲ度
E.
深Ⅱ度及Ⅲ度
查看完整题目与答案
【简答题】Please paraphrase the following sentences: It was only that one day I happened to be walking behind them, and the curious up-and-down motion of a load of wood drew my attention to the human being bene...
查看完整题目与答案
【简答题】• Suppose that one day you are going to do business with a westerner. You'd like to have dinner with him and show him the beautiful sight of your city. But in the westerner's perspective, it has nothi...
查看完整题目与答案
【判断题】一般工业用气较为均衡,民用气波动较大。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Oil in this world will be exhausted one day, in the future, but that may not come so soon as we would suppose.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】I'm not such a fool as to imagine I might stand a chance now that you are so above me. But don't suppose I'm content to stay nobody all my life. One day I will leave you. You can be sure of that. ...
A.
Hidden Figures
B.
The Blind Side
C.
Green Book
D.
Far From The Madding Crowd
查看完整题目与答案
【单选题】Given the following Classical-type table shows the number of days of labor input required to obtain one unit of output of each of the three commodities in each of the two countries:【图片】Suppose that th...
A.
export good T and import goods X and Y.
B.
export good Y and import goods T and X.
C.
export goods T and X and import good Y.
D.
export goods X and Y and import good T.
查看完整题目与答案
【单选题】Suppose that for the past two months, you have studied economics one hour a day. You now decide to study economics two hours a day. For the past two months, ( ).
A.
your marginal cost of studying economics for an hour must have exceeded its marginal benefit
B.
the marginal cost of studying economics must have fallen
C.
your marginal benefit from studying economics an hour must have been greater than its marginal cost
D.
the opportunity cost of studying economics must have risen.
查看完整题目与答案
【简答题】• I'm not such a fool as to imagine I might stand a chance now that you are so above me. But don't suppose I 'm content to stay nobody all my life. One day I will leave you. You can be sure of tha...
查看完整题目与答案
【单选题】Suppose that for the past two months, you have studied economics one hour a day. You now decide to study economics two hours a day. For the past two months, ________. (假设在过去的两个月里,你每天都在学习经济学。你现在决定每天两个...
A.
your marginal cost of studying economics for an hour must have exceeded its marginal benefit你经济学一小时的边际成本必须超过其边际收益
B.
the marginal cost of studying economics must have fallen研究经济学的边际成本必须下降
C.
your marginal benefit from studying economics an hour must have been greater than its marginal cost小时学习经济学的边际效益必须大于其边际成本
D.
the opportunity cost of studying economics must have risen.学习经济学的机会成本必须上升。
查看完整题目与答案
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