Study hard, ________you will fail in the exam.[ ]
A. so
B. or
C. but
D. and
答案:B
Form the sentences. 连词成句 。
1. paper, she, on, the, is, drawing
.
2. have, books, how many, do, I
?
3. desk, the, book, is, the, on
4. pencil, not, It's, Kim's
5. in, school, boy, he, is, new, a
可乐定口服给药会产生()
A.仅有降压作用。无升压效应
B.先短暂降压继而升压
C.先短暂升压,继之降压
D.仅有升压作用,无降压效应
E.血压不变,仅产生镇静作用