—Do you mind my opening the window to let the fresh air in?—__________. I also would like to breathe in some fresh air.
A:Never mind
B:Not at all
C:That's all right
D:You'd better not
用下面的字各组两个词语。
丽____、____ 劳____、____ 字____、____
浪____、____ 灯____、____ 作____、____
“绿叶在光下制造淀粉”的实验证明了( )
为争创文明、卫生县城,我县的环卫部门每天都要在县城的主要街道上洒水,在水平路面上匀速行驶的洒水车正在洒水作业时,该洒水车的惯性大小 ____,动能 ____.(选填“增大”“减小”或“不变”)