Word came ________ our country has sent up another man-made satellite. I was always wondering ________ the scientist managed to make such a great achievement. A . which; why B . that; why C . that; how D . when; how 答案:C
下列表示东台某天早晨、中午和午夜的温度(单位:℃),则下列说法正确的是 ( ) A. 午夜与早晨的温差是11℃ B. 中午与午夜的温差是0℃ C. 中午与早晨的温差是11℃ D. 中午与早晨的温差是3℃