下列哪个途径不传染艾滋病
A.吸食母乳
B.器官移植
C.共用食具
D.人工授精
E.共用的剃刀、牙刷,可经破损处传染
参考答案:C
解析:共用食具一般不会传染艾滋病。
----Do you know the woman called Yu Dan?
----Yes. She is regarded _______ one of the best speakers in our country.
A.with
B.like
C.for
D.as
如图所示,为某汽车做直线运动的v-t图象,由图可知,
(1)0-10s,10-40s,40-50s汽车分别做什么运动?
(2)求全过程的位移