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【单选题】
王国分封了多少个诸侯王朝?A.
68.0
B.
69.0
C.
70.0
D.
71.0
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反馈参考答案：
举一反三
【多选题】行星齿轮机构中太阳轮,行星架和齿圈三者齿数关系是( )。
A.
太阳轮齿数比齿圈多
B.
齿圈是三个中齿数最多的
C.
行星架齿数等于太阳轮与齿圈齿数之和
D.
太阳轮是三个中齿数最少的
【单选题】行星齿轮机构中太阳轮,行星架和齿圈三者齿数关系是( )。
A.
太阳轮齿数比齿圈多
B.
齿圈是三个中齿数最多的
C.
行星架齿数等于太阳轮与齿圈齿数之和
D.
太阳轮是三个中齿数最多的
【单选题】________ of this term, we will have learnt 4 books.
A.
At the end
B.
By the end
C.
In the end
D.
At an end
【简答题】We have learnt that there is a good demand for cameras in your market,and take this opportunity for enclosing our quotation sheet No.120 for your consideration.
【单选题】We are going to have fun ____ English together.
A.
to learn
B.
learning
C.
learn
D.
learnt
【单选题】—How many English words have you learnt now? —We had learnt over 1,500 English words ___________ the end of last week.
A.
at
B.
in
C.
by
D.
with
【单选题】We spend as much time as we can _____ English.
A.
learn
B.
to learn
C.
learning
D.
have learnt
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