—He failed again. —The of too much time

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问题选择题

—He failed again.

—The of too much time to computer games leaves too little time for studying.

A．use

B．cost

C．devotion

D．expense　

答案

答案：C

问答题简答题

连续流动式和分立式自动生化分析仪在结结构上有哪些区别？

填空题

　　十三个枢纽城市：东北：_________，________；华北：________、________；西北：_______；长江中下游：________、________、________；西南：________、________、________、________

南部沿海：________。