巧克力的可可脂从()中提炼出来。
A.可可豆
B.巧克力豆
C.咖啡豆
D.可可白脱
参考答案:A
I lost sight of Wang Ping when we reached _____ looked like a large market because of too many carriages flying in all directions.
A.that
B.which
C.what
D.where
在什么情况下需要交换名片或不交换?