A:酸橘入口,分泌唾液
B:遇强光人的瞳孔变小
C:谈虎色变
D:人熟睡时被蚊子叮咬会动一动
There was something wrong with the line. We couldn't _______ each other clearly.
We have __________ English class __________ Monday morning.
某单位有78个人,站成一排,从左边向右数,小王是第50个,从右边向左数,小张是第48个,则小王和小张之间有多少个人?