【单选题】One way to learn English better is to gain _____ knowledge of the culture of English speaking countries. [ ]
【简答题】用所给词的正确形式填空. 1. I have two ______ (dictionary). One is English-Chinese dictionary, and the other is Chinese-English dictionary. 2. A: What's the result of the race, Mary? B: Jane is the ______ (one) i...
【单选题】乙类互补功率放大电路的效率较高,但这种电路会产 生( )失真。
【多选题】解决残缺、冷隔缺陷产生的措施有( )
A.
铸件过于纤细或者面大壁薄,对于此类设计进行修改,适当增加壁厚
B.
在不影响其他性能前,可以选择熔点低、结晶间隔小,表面张力小的合金
【单选题】There is often one ________ English newspaper in countries ________ English is not the main language. [ ]