在应征求职时，男性最好穿蓝色套装配（），不要穿过于灰、深或咖啡色等服装。
A.灰色衬衫
B.黑色衬衫
C.白衬衫
D.咖啡色衬衫
参考答案：C
He made another wonderful discovery , ____ of great importance to science.[ ]
A. which I think is
B. which I think it is
C. which I think it
D. I think which is
旅客和托运人进入（）时应进行安检。
A、行包房托运
B、以上都是
C、候车室
D、车站在站房外划定的候车区域
