土场的使用原则包括()。
A.远土先用
B.干土先用
C.近土先用
D.高土先用
参考答案:C
Thanks to modern technology which has now broken the law of seasons, farming is no longer _______ weather and temperature.
A.at the mercy of
B.in the charge of
C.in the name of
D.in view of
CPU主要技术性能指标有______。
A.字长、运算速度和时钟主频 B.可靠性和精度C.耗电量和效率 D.冷却效率