【单选题】购买铅笔7支,作业本3本,圆珠笔1支共需3元;购买铅笔10支,作业本4本,圆珠笔1支共需4元,则购买铅笔11支,作业本5本,圆珠笔2支共需( )
【判断题】树鼩凭分泌的有特殊气味的分泌物识别环境。
【单选题】以下三个句子都属于( ) 1)Is there a book on the desk.桌子上面有一本书吗? Yes, there is. No, there isn't. (2)Is there any water in the bottle.瓶子里有一些水吗? Yes, there is. No, there isn't. (3)Are there any appl...
【判断题】划分长期投资与短期投资的基本依据是看其投资回收期限是否超过 1 年。()
【简答题】1支钢笔可以换3支圆珠笔,1支圆珠笔可以换4枝铅笔。1支钢笔可以换几枝铅笔?
【单选题】用电压测量法检查低压电气设备时,把万用表扳到交流电压( )挡位上。
【单选题】Small plants like grasses and herbs are grown widely on intensive green roofs.
【单选题】All of _____ sudden, the passengers on _____ board let out screams, running upstairs like crazy.