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【简答题】
n. [C, U] a natural tendency to behave in a particular way or a natural ability to know sth. which is not learned 本能;直觉;天性
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举一反三
【简答题】McGuire proposed Labor Day in order to ________. A) draw people’s attention to the striking contrast between the rich and the poor B) make prominent the important role of the working class in society ...
【单选题】凸轮机构从动杆可以分为尖顶从动杆凸轮机构、滚子从动杆凸轮机构、平底从动杆凸轮机构,从动件最容易磨损的是( )
A.
尖顶从动杆凸轮机构
B.
滚子从动杆凸轮机构
C.
平底从动杆凸轮机构
【单选题】What did Sarah have to do in order to finish her economics project?
A.
Draw her own charts and graphs.
B.
Go to the computer center for assistance.
C.
Wait until 9:30 for a computer.
D.
Ask her professor for advic
【单选题】In order to be a good writer, you have to________your imagination and life experience. [     ]
A.
draw up
B.
draw upon
C.
draw in
D.
draw for
【单选题】The author writes this passage in order to ______.
A.
entertain young children
B.
persuade readers
C.
inform. us of Mother's Day
D.
describe the importance of mothers
【判断题】效果图由具有工业造型 技术能力的开发人员完成,采用水彩,彩铅或者素描等方式绘制,效果图分为车身造型效果和4D效果图两种。
A.
正确
B.
错误
【单选题】()不是按从动杆型式划分的凸轮机构类型。
A.
盘形凸轮机构
B.
平底从动杆凸轮机构
C.
尖顶从动杆凸轮机构
D.
滚子从动杆凸轮机构
【单选题】In order to be a good teacher, you have to ______ your imaginations and life experience.
A.
draw up
B.
draw in
C.
draw upon
D.
draw for
【单选题】关于胎盘功能,下述各项中哪项是不正确的()。
A.
促进葡萄糖经胎盘的转移
B.
脂肪酸不能通过胎盘屏障
C.
胎盘以扩散与主动转运方式吸收营养物质
D.
胎盘能过合成多种激素和酶
E.
氨基酸在胎儿血中浓度高于母血
【单选题】凸轮机构从动杆可以分为尖顶从动杆凸轮机构、滚子从动杆凸轮机构、平底从动杆凸轮机构,对于要求传动灵敏的场合,应选用( )
A.
平底从动杆凸轮机构
B.
滚子从动杆凸轮机构
C.
尖顶从动杆凸轮机构
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