— Could you show me_______? —The red one on Lilia’s desk. A. where I should put the coat B. whose coat it is C. what color coat should I wear D. which coat I should wear
For centuries, the only form of written correspondence（通信）was the letter. Letters were, and are, sent by some form of postal service, the history of which goes back a long way. Indeed, the E
是区域
内的任意一点，则使函数
在区间
上是增函数的概率为（ ）
（B）
（C）
（D）
