铝合金生产过程中,目前尚无法精确测量其含量的是()。
A.非金属夹杂物
B.氢气
C.氧气
D.硅
参考答案:A
按括号内要求完成各题。
1.They are going to visit Mr. Wang tonight. (改为否定句)
They _____ going to visit Mr. Wang tonight.
2.The Lion King is on at Sun Theatre in the evening.(对划线部分提问)
_____ ______ the Lion King on in the evening ?
3.I would like to have some juice. (改为一般疑问句)
______ you _____ to have some juice ?
4.Bill does his homework at home.(用tomorrow改写)
Bill _____ _____ _____ do his homework tomorrow.
5.He is going to Shanghai on Friday.(改为一般疑问句,并作否定回答).
______ he______ to Shanghai tomorrow ? No, he _______.
暑厥的症状表现可见()。
A.口眼歪斜
B.肢厥
C.半身不遂
D.突然昏倒
E.骤然咯血