牡蛎散的药物组成中不含有()。
A.牡蛎
B.白术
C.黄芪
D.麻黄根
E.小麦
参考答案:B
Although we may not realize ________, when we talk with others we make ourselves understood not just by words but also by body movements.
A.it
B.them
C.that
D.ourselves
国际通用的SOS求救信号中的“0”表示()。
A.三个短号
B.三个长号
C.六个短号
D.六个长号