【简答题】合金的基本相结构可分为( )和金属化合物。
【多选题】机械循环热水采暖系统和自然循环热水采暖系统的主要区别是( )。
【单选题】下列属于上海证券交易所综合指数类的是( )。
【单选题】有以下程序: #include<stdio.h> void ss(char *s,char t) { while(*s) { if(*s==t) *s=t-'a'+'A'; s++; } } main() { char strl[20]='abcddfefdbd',c='d'; ss(strl,c); Printf('%s/n',strl); } 程序运行后的输出结果是( )。
【判断题】铁耗虽然产生在电枢铁心中,但它主要是因转子旋转形成的旋转磁场在电枢铁心中产生的,故应归到转子边去。 ( )
【判断题】所谓铁损耗是指电枢铁心在磁场中旋转时,硅钢片中的磁滞和涡流损耗。
【单选题】According to Dr. Coles, ______.
A.
there are as many advantages to being poor as there are to being rich
B.
being rich can bring more problems than being poor
C.
rich children can be deprived of the thing they are most in need of
D.
wealth brings more disadvantages than advantages to rich children