凡在坠落高度基准面( )m以上,有可能坠落的高处进行的作业称为高处作业。
A.1.8
B.2.0
C.2.5
D.3.0
参考答案:B
—Don't forget _____ your homework to school tomorrow.
—_____.[ ]
A. taking; OK, I won't
B. to bring; OK, I will
C. to bring; OK, I won't
D. to take; OK, I will
下列哪项不是时行感冒的特点()
A.传染性大
B.病情较重
C.不限季节
D.易于流行
E.容易传变