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【单选题】
普通平键有圆头(A型)、平头(B型)和单圆头(C型)三种型式,当轴的强度足够,键槽位于轴的中间部位时,应选择 为宜。A.
A型
B.
B型
C.
C型
D.
B型或C型
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反馈参考答案：
举一反三
【简答题】一、教育技术的理论基础有哪些?
【简答题】教育技术的理论基础有哪些?
【单选题】We'll have plenty time.There will be____time to see him.
A.
enough
B.
almost enough
C.
less than enough
D.
hardly enough
【简答题】教育技术的理论基础有 ; ; ; 。
【简答题】教育技术的理论基础有哪些?
【单选题】—What will the weather be like tomorrow? —The forecast says there will be a ______ snow.
A.
heavy
B.
heavily
C.
hard
D.
hardly
【单选题】We'll have plenty of time.There will be time to see him.
A.
enough
B.
almost enough
C.
less than enough
D.
hardly enough
【单选题】[A] The pay is not good enough. [B] There will be too much workload. [C] Something unfair may happen. [D] There is hardly any promotion.
A.
[A] The pay is not good enough.
B.
[B] There will be too much workload.
C.
[C] Something unfair may happen.
D.
[D] There is hardly any promotion.
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