搜题请搜索小程序“爱下问搜题”
问题
单项选择题
某井钻进时计算环空钻井液的Z值是860，则其流态是（）。
A、层流
B、紊流
C、塞流
D、平板流
答案
参考答案：B
填空题
根据答句，选词填空。
How much How many How old
How What Who Whose
1.
can you see? I can see some birds.
2.
are you? Fine, thank you.
3.
book is this? It's Mike's.
4.
kites can you see? I can see four.
5.
are you? I'm twelve.
查看答案
判断题
量块按检定精度分为0.1.2.3.4.5．等，0等精度最高，5等精度最低.
查看答案
