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【简答题】
阅读下面有关茎的资料，回答问题： 1们已经知道，植物体里有两种运输线，植物生活所需要的全部物质就是依靠这两种运输线来输送的：一种是木质部里面的运输线，另一种是韧皮部里面的运输线． ②我们常常会看到这样的老树：树干里面大部分都空了，可是枝叶仍旧活着． ③为了保护树木，必须保护树皮．我们不但自己不能随意伤害树皮，还要防止家畜啃咬树皮． （1）构成木质部运输线的具体结构是______；它运输的物质是______． （2）树木不怕空心的原因是什么？ 答：______ （3）杜仲的树皮是名贵的中药材，有人为谋私利将杜仲的大部分树皮剥掉，结果导致杜仲植株死亡，为什么杜仲的大部分树皮被剥掉后会导致树木死亡？ 答：______．
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参考答案：
举一反三
【单选题】需要进行隔油处理的污水是 。
A.
住宅污水
B.
医院污水
C.
汽车修理车间
D.
冷却废水。
查看完整题目与答案
【单选题】I' ve been working on my vocabulary actively, and one way to ______ it is to see films in English on TV.
A.
go down
B.
go up
C.
improve
D.
decrease
查看完整题目与答案
【单选题】I’ve been working all day, but I feel as if I _______ nothing.
A.
have been achieved
B.
were achieving
C.
had achieved
D.
am achieving
查看完整题目与答案
【单选题】以“铁人”_____为代表的一批石油人以为国分忧、为民族争气的爱国主义精神。
A.
王进喜
B.
王启民
C.
秦咏诚
D.
王彬
查看完整题目与答案
【简答题】听下面一段材料，回答第1-2题。 1. What are the two speakers mainly talking about? A. A chemistry test. B. William Carlos Williams. C. A spoken report. 2. What does the woman want the man to do? A. To choose a topic...
查看完整题目与答案
【单选题】Man: I've been working out at the gym since January so… I'd been wanting to get in better shape. Woman: You look terrific! Seems like all your hard work has paid off. Question: What does the woman mea...
A.
The man paid a lot to join the gym.
B.
The man has been working too hard.
C.
The man has improved his physical condition.
D.
The man should ask for more pay.
查看完整题目与答案
【单选题】— Have you been wasting time on cartoons again? — __________. I’ve been working all the time and I need a break.
A.
I couldn’t agree more
B.
No way
C.
Not really
D.
That’s all right.
查看完整题目与答案
【单选题】需要进行隔油处理的污水是 ( )
A.
汽车修理车间
B.
医院楼污水
C.
住宅楼污水
D.
工厂冷却废水
查看完整题目与答案
【单选题】— Have you been wasting time on cartoons again? — __________. I’ve been working all the time and I need a break.
A.
Not really
B.
No way
C.
That’s all right
D.
I couldn’t agree more
查看完整题目与答案
【多选题】铁人精神是在新中国石油工业开发和建设的光辉历程中,以铁人王进喜为代表的一大批英雄模范、先进人物的( )的高度凝结和集中表达。
A.
理想信念
B.
炽热情感
C.
顽强意志
D.
价值追求
查看完整题目与答案
相关题目：
【单选题】需要进行隔油处理的污水是 。
A.
住宅污水
B.
医院污水
C.
汽车修理车间
D.
冷却废水。
查看完整题目与答案
【单选题】I' ve been working on my vocabulary actively, and one way to ______ it is to see films in English on TV.
A.
go down
B.
go up
C.
improve
D.
decrease
查看完整题目与答案
【单选题】I’ve been working all day, but I feel as if I _______ nothing.
A.
have been achieved
B.
were achieving
C.
had achieved
D.
am achieving
查看完整题目与答案
【单选题】以“铁人”_____为代表的一批石油人以为国分忧、为民族争气的爱国主义精神。
A.
王进喜
B.
王启民
C.
秦咏诚
D.
王彬
查看完整题目与答案
【简答题】听下面一段材料，回答第1-2题。 1. What are the two speakers mainly talking about? A. A chemistry test. B. William Carlos Williams. C. A spoken report. 2. What does the woman want the man to do? A. To choose a topic...
查看完整题目与答案
【单选题】Man: I've been working out at the gym since January so… I'd been wanting to get in better shape. Woman: You look terrific! Seems like all your hard work has paid off. Question: What does the woman mea...
A.
The man paid a lot to join the gym.
B.
The man has been working too hard.
C.
The man has improved his physical condition.
D.
The man should ask for more pay.
查看完整题目与答案
【单选题】— Have you been wasting time on cartoons again? — __________. I’ve been working all the time and I need a break.
A.
I couldn’t agree more
B.
No way
C.
Not really
D.
That’s all right.
查看完整题目与答案
【单选题】需要进行隔油处理的污水是 ( )
A.
汽车修理车间
B.
医院楼污水
C.
住宅楼污水
D.
工厂冷却废水
查看完整题目与答案
【单选题】— Have you been wasting time on cartoons again? — __________. I’ve been working all the time and I need a break.
A.
Not really
B.
No way
C.
That’s all right
D.
I couldn’t agree more
查看完整题目与答案
【多选题】铁人精神是在新中国石油工业开发和建设的光辉历程中,以铁人王进喜为代表的一大批英雄模范、先进人物的( )的高度凝结和集中表达。
A.
理想信念
B.
炽热情感
C.
顽强意志
D.
价值追求
查看完整题目与答案
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