Would you like ______ out for a picnic with me?[ ]
A. go
B. to go
C. going
D. goes
答案:B
用治阳虚便秘的药是()
A.鹿茸
B.巴豆
C.肉苁蓉
D.硫黄
E.雄黄
定向装配的目的是为了抵消一部分相配尺寸的()。
A.加工误差
B.装配误差
C.上偏差
D.下偏差