【简答题】Two boys are playing basketball ____________(on/at)the back of the classroom.
【简答题】Two boys are on the playground.
【单选题】若执行fopen函数打开文件不成功时,则函数的返回值是( )
【单选题】药品所含成分与国家药品标准规定的成分不符合的,属于()
【单选题】某公司生产的朱砂安神丸微生物含量严重超标,且含有一种西药成分地西泮,这属于
【简答题】It's fine on Saturday morning. There are many people in the park. Many of 1 (they) are young and some are old, Some children are____2__( 玩 )s over there. Two boys are playing__3__their toys.Look, ...
【简答题】Error correction. To make a favorable impression upon a prospective employer,courteous languange should be used by an interviewee.