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【单选题】
往返丈量的精度计算公式为( )。
A.
1/K=(D返-D往/D)
B.
(1/│K│)=(D返-D往/D)
C.
1/K=(│D往-D返│/D)
D.
-1/K=(D往-D返/D)
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参考答案:
举一反三
【简答题】Once there was a piano player in a bar. People came just to hear him play. But one night, a girl asked him to sing a song. “ I don ’ t sing, ” said the man. But the girl told the waiter, “ I ’ m tired...
【单选题】谢才系数 C 与沿程水头损失系数 的关系为
A.
C 与  成正比
B.
C与1  成正比
C.
C 与 2 成正比
D.
C与 成正比
【单选题】谢才系数 C 与沿程水头损失系数 l 的关系为
A.
C 与 l 成正比
B.
C 与  1 / l 成正比
C.
C 与 l的平方 成正比
D.
C 与 成正比
【简答题】Indicate the grammatical fuction of the v.ed form in the following sentenes.The door remained locked.The books left are for my sstudents.Lost time can never be found again.I must have my bike repaired...
【简答题】Two Americans were traveling in Spain. One morning they came into a little restaurant for lunch. They did not know the native language and their waiter did not know theirs, either. They wanted their w...
【简答题】Once there was a piano player in a bar( 酒吧 ). People came just to hear him play. But one night, a lady asked him to sing a song. "I don't sing," said the man. But the lady told the waiter, "I'm tired ...
【多选题】下列项目中,通常属于酌量性固定成本的是( )
A.
广告费
B.
固定资产折旧费
C.
研究开发费用
D.
职工教育培训费
【单选题】下列哪个器官是物质代谢的枢纽
A.
B.
C.
D.
E.
脊髓
【简答题】She’s _________ to help us no matter when. 2. Robert asked the waiter to _________ him the check. 3. I’m sorry, I’ve ___________ your name. 4. You must ___________________ everyday English. 5. Will yo...
【单选题】谢才系数 C 与沿程水头损失系数 l 的关系为
A.
C与 l 成正比
B.
C与1 / l 成正比
C.
C与 成正比
D.
C与成 正比
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