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【判断题】
对于新鲜而岩性坚硬的岩体来说,岩体的强度就等于岩石的强度A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】When delivering a speech, you have to speak clearly and slowly to make yourself (understand)______.
【单选题】When delivering an address, the most important listener-related factor is usually ()
A.
Disposition.
B.
Demographics.
C.
Frame. of reference.
D.
Channel of communication.
【单选题】Eye_______ is very important when delivering a speech in public.
A.
touch
B.
sight
C.
sign
D.
contact
【简答题】When a female whale is delivering a baby, another female usually comes to help as a ______.
【简答题】n越大,对随机过程统计特性特性的描述越 。
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