相对水深0.2、0.8的测点流速分别为0.13m/s、0.067m/s,则该垂线平均流速为()m/s。
A、0.0985
B、0.098
C、0.099
D、0.10
参考答案:B
根据短文意思回答问题。
A: Excuse me.
B: Yes?
A: Would you please tell me the way to No. 3 Middle School?
B: Sorry, I don't know. You may ask the policeman.
A: Excuse me, sir?
C : Yes?
A: How can I get to No. 3 Middle School?
C: Go along this street, and then turn right. The middle school is on your right.
A: Is it a long walk?
C: No, it's about one hundred metres away.
A: Thank you.
C: That's all right.
Questions:
(1) Does the man know the way to No. 3 Middle School?
(2) Can the first man point out how to get there?
(3) Who can help him?
(4) How to get there?
(5) How far is it?
— is the bus station from Tian’anmen Square?
—About thirty minutes’ ride.
A. How long B. How far C. How much