在中性点直接接地系统中,电气设备()是危险的。
A.接地
B.不接地
C.接地和不接地
D.不漏电
参考答案:B
The environment is getting worse in the present days, so the government must take _______ to stop people _______ too many trees.
A.methods; to destroy
B.methods; from destroying
C.measures; from destroying
D.measures; to destroy
A.甲乙
B.甲丁
C.乙丙
D.丙丁