状态检测设备配置（），是状态检修工作还需要进一步深化的原因。
A.严重不足
B.不足
C.基本满足
D.部分不足
参考答案：B
用所给动词的正确时态填空。
1.It takes about an hour _____(go) to Changzhou by bus.
2.He left home without _____(tell) his mother.
3.My sister seldom _____(play)volleyball now .
4.Look ! Lily's cat _____ (lie)on the sofa comfortably .
5.It's time for us _____(exercise) now .
6.I am planning _____ (take) a holiday to the USA.
水力压裂的增产增注机理主要体现在？
