已知集合A={x|x＞1}，则（CRA）∩N的子集有（　　）A．1个B．2个C．4个D．8个

At the very beginning, what did Tony do at Mr. Crawford.s house?（2.0分）2.0 分 A、

At the very beginning, what did Tony do at Mr. Crawford.s house?A、a farmerB、a he

At the very beginning, what did Tony do at Mr. Crawford.s house?A、a farmerB、a he

设a＞b＞0，A={x||x﹣b|＜a}，B={x||x﹣a|＞b}，则（CRA）∩（CRB）=（）．

已知集合A={x|3＜x＜7}，B={x|2＜x＜10}，则（CRA）∩B=（　　）A．[7，10）B．（2，3]C．（2，3]∪[7，10）D．（2，3）∪（7，10）

已知集合A={x|x＞3}，B={x|2＜x＜4}，那么集合（CRA）∩B等于 [ ]A．{x|x≤3} B．{x|2＜x≤3}C．{x|3＜x＜4}D．{x|x ＜4}

The universal lifting spreader is a lifting device used on ______.A.dockside container cra

Immediately after any diesel engine is started, the engineer should check the ______.A.cra

At the very beginning, what did Tony do at Mr. Crawford.s house?（2.0分）2.0 分A、a f