【单选题】The company had about 20 notebook computers but
A.
7. The company had about 20 notebook computers butonly one-third _______ used regularly. Now we have 60 working all daylong. (浙江) A.is
【单选题】( 浙江卷 )7. The company had about 20 notebook computersbut only one-third _______ used regularly. Now we have 60 working all daylong. ( + 主谓一致)
【单选题】叶天士认为用苦泄法治疗胃脘痞闷的舌象应是
【简答题】对于电流继电器,当Mdc_______时,继电器动作;当Mdc_______时,继电器返回。
【单选题】电子商务 模式是我国最早产生的电子商务模式