【简答题】Fill in the blanks with how much/how many . 1. pairs of jeans do you want? 2. is a new pair of shoes? 3. are his pants? 4. shirts does she have? 5. does his sweater cost?
【单选题】Why does the woman say: “I should have taken more T-shirts?”
A.
Because she thinks she should wear more fashionable clothes.
B.
Because she thinks she should wear T-shirt on the beach.
C.
Because it was really hot in Singapore.
【单选题】轴上零件轴向移动量较大时,则采用( )链接。
【多选题】下列结构中具有β羟基的化合物有()()()()()
【单选题】当两种或两种以上的药物按一定比例混合后,产生熔点降低而出现润湿或液化的现象称为