钻井液受油气侵后，密度下降，粘度、切力（）。
A、升高
B、降低
C、不变
参考答案：A
物流企业在承接项目物流后，一般是通过租借设备的方式完成项目物流。( )
I would rather you _______me the truth; then what has happened would not have happened. [ ]
A. to tell
B. tell
C. told
D. had told
