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【单选题】
若仅能在小于360°的某一角度内摆动的构件,则称为( )。
A.
曲柄
B.
摇杆
C.
机架
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举一反三
【判断题】人类 X染色体属于C组。
A.
正确
B.
错误
【单选题】1-7. 应用软件系统维护的类型有:完善性维护、适应性维护、改正性维护和( )
A.
安全性维护
B.
可靠性维护
C.
预防性维护
D.
技术性维护
【单选题】When is the best time of a woman's life, as Beth Orton was told?
A.
In her 60s.
B.
In her 40s.
C.
In her 30s.
D.
In her 20s.
【简答题】A.It's a time when people exchange gifts with friends, family, and teachers. B.It's a holiday when friends give gifts during a splendid dinner. C.It's a day when people think of others without waiting...
【单选题】X染色体属于哪一组()
A.
A
B.
B
C.
C
D.
D
E.
E
【单选题】X染色体属于
A.
D组
B.
C组
C.
F组
D.
G组
【简答题】When is the best time of a woman's life, as Beth Orton was told? [A] In her 60s. [B] In her 40s. [C] In her 30s. [D] In her 20s.
【单选题】It’s a long time _____we met again .
A.
how 
B.
after 
C.
for 
D.
when
【单选题】珍珠的形成过程说明在创业的过程中需要( )
A.
充满热情的内在动力
B.
搏击风浪的精神勇气
C.
百折不回的执着信念
D.
切合实际的理性精神
【单选题】When the passion and drive ebb, ______.
A.
it's time to show the importance of one's full energy
B.
it's hard to move on again
C.
it's time to test one's work ability
D.
it's likely that high-level person won't give up
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