炸药爆炸过程的热损失主要取决于爆炸过程中的()、()、()。
参考答案:热传导;热辐射;介质的塑性变形
The boy can speak English _____ his elder brother, but his written work is just_____ excellent.
A.as good as, than
B.as easy as, than
C.as well as, as
D.as fluent as, as
如何判断近亲结婚对遗传病的影响程度?