吸尘器不能吸()、黏性物体和金属粉末。
A、固
B、头发
C、液体
D、绒毛
参考答案:C
He went back to the hall to try his ________ at finding his lost gold watch,but never found it. [ ]
A. fortune
B. bargain
C. result
D. competence
以下哪些可以称为广义的法律()
A、红头文件
B、宪法
C、规章
D、司法解释
E、纪律规定