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【单选题】
万向联轴器的主要缺点是()
A.
结构复杂
B.
能传递的扭矩很小
C.
从动轴角速度有周期性变化
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参考答案:
举一反三
【简答题】阅读理解。 Michelle Wie, from America, is like a lot of other young girls in many ways. She is a good student, and she is a good student, and she likes reading, drawing, and computers. However, in some oth...
【简答题】Young girls like to keep _____with the latest fashions.
【单选题】____ the students likes the paintings. Which is wrong?
A.
The teacher as well as
B.
Nobody but
C.
The teacher besides
D.
All except
【单选题】青霉素分子中最不稳定的部位是
A.
酰胺基
B.
p-内酰胺环
C.
羧基
D.
苯环
E.
苄基
【判断题】Belle is young and smart, and loves reading a lot, like the other girls in her village.
A.
正确
B.
错误
【单选题】These days most people, especially young girls, like to look slim. Our grandfather's【21】were different【22】ours, but nowadays【23】seems to enjoy【24】fat girls. That is why many companies have developed s...
A.
tastes
B.
steps
C.
stages
D.
tests
【简答题】Qi Qiao Festival and Valentine's Day Double Sh Festival is also called Qi Qiao Festival, a traditional romantic festival in China particularly popular among young people. According to legend, Ni...
【单选题】青霉素分子中最不稳定的部位是()
A.
酰胺基
B.
β-内酰胺环
C.
羧基
D.
苯环
【简答题】s are going to be s, but they are not always readily 1) e to make appropriate decisions about their appearance. Some magazines 2) m toward s include articles that send the wrong messages ...
【单选题】青霉素分子中最不稳定的部位是
A.
酰胺基
B.
-内酰胺环
C.
羧基
D.
苯环
E.
苄基
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