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【简答题】
She spent her life c_______for women′s rights. (发起运动)她毕生致力于女权运动。 2. I found it hard to c_______my feelings in words. (表达) 3. 不同意;不喜欢;拒绝: His mother d______________ of his plan to go away to college last year. 4. 插曲;一段情节;(电视剧)一集;有趣的事件:Being named the best athlete of the year was an important e __________ in his life. 5. 名誉,名声:Her r_________ recovered quickly. 6. 可携带的,手提式的 p____ computer 手提电脑 7. 预言:Scientists still cannot p________ when earthquakes will happen. 8. 追求,寻求,遵从;追赶:The p__________ of happiness is the right of all people. 9. You have first got to m________ the children and then to teach them. 你首先得激发孩子们的学习兴趣,然后再去教他们。 10. The management has y________ to the workers. 投资方向工人让步了。
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【单选题】三线螺纹的导程为螺距的倍
A.
1
B.
3
C.
2
D.
4
【判断题】三线螺纹的导程为螺距的3倍。
A.
正确
B.
错误
【单选题】图示电路,已知晶体管β=60,U BE =0.7V,R C =2KΩ,忽略U BE ,如要将集电极电流I C 调整到1.5mA,R B 应取()
A.
480kΩ
B.
120kΩ
C.
240kΩ
D.
360kΩ
【单选题】逆转录时碱基的配对原则是( )
A.
A-C
B.
C-U
C.
U-T
D.
U-A
E.
G-A
【单选题】三线螺纹的导程为螺距的倍
A.
4
B.
1
【单选题】逆转录时碱基的配对原则是( )
A.
G-A
B.
C-U
C.
A-C
D.
U-A
E.
U-T
【单选题】三线螺纹的导程为螺距的 ( )倍:
A.
2
B.
3
C.
4
D.
1
【单选题】图所示电路中,已知 ,晶体管 ,且忽略 ,若要使静态时 ,则 应取
A.
200kΩ
B.
300kΩ
C.
600kΩ
D.
1500K
【多选题】RNA逆转录时碱基的配对原则是
A.
A-T
B.
U-A
C.
C-G
D.
G-A
E.
U-T
【单选题】三线螺纹的导程为螺距的 ( )倍。
A.
1
B.
2
C.
3
D.
4