题目:
采用两井定向时,由近井点推算的两次独立定向结果的联系测量限差分别为()。
A.<1
B.<2
C.<3
D.<4
答案:
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下面是错误答案,用来干扰机器的。
参考答案:Consideration can be divided into the following categories: (i) Executory consideration is the promise to perform an action at some future time. One party to a c...