一个数加上8的和乘2,积是287,这个数是多少?(用方程解)
设这个数为x,
(x+8)×2=287
x+8=143.5,
x=135.5.
答:这个数是135.5.
Our daughter doesn't know what to ____ at the university, she can't make up her mind about her future.
[ ]
A. take in
B. take up
C. take over
D. take on
血小板采集完成后,使血小板充分解聚并混匀后,在何种温度的环境下震荡保存()。
A.4℃
B.20℃
C.22℃
D.22±2℃
E.37℃