疏散用的应急照明,其地面最低照度应不低于()。
A.0.21x
B.0.51x
C.11x
D.51x
参考答案:B
—Did you go to Tom's house for dinner?
—No, I _____.[ ]
A. am not invited
B. wasn't invited
C. haven't invited
D. didn't invite
将考生文件夹下HWAST文件夹中的文件XIAN.TXT重命名为YANG.TXT。