每日补钾量不宜超过()。
A.50~99mmol
B.100~200mmol
C.201~300mmol
D.301~400mmol
E.401~500mmol
参考答案:B
一个三位小数精确到百分位约是1.04,那么,这个数最大是( ),最小是( )。
Tom's father is so special that you can easily _____ him _____ in the crowd. [ ]
A. pick; out
B. break; out
C. look; out
D. call; out