英国君主立宪制确立的标志是（ ） A. 处死国王查理一世 B. 1649年英吉利共和国的建立 C. 1688年光荣革命
中国与非洲各国历来就有建交活动，这属于 A．南北对话 B．南北之差 C．南南合作 D．
My first visit to London was one and half years ago. It Was 41. wonderful trip. I stayed in the city for three weeks, and I had many 42. (impress). I visited all the famous places.
The boy we all considered to be honest was ______ of cheating in the exam. A. approved B. warned C. accused D. informed
抗日战争的胜利是“中华民族近百年来未有的大事”，主要理由是 A．改变了反帝斗争屡败的局面，取得了完全胜利 B．大大增强了全国人民的
关于经线和纬线说法正确的是( ) A．纬线是半圆 B．经线是圆形 C．最长的纬线是赤道． D．经线有180条
The doctors in the medical institute wrote several articles, explaining in detail the steps of how to _____ a baby. A. give B. deliver C. have D. give birth to
如图所示，质量为m的木块置于水平面上的木板上滑行，木板静止，木块与木板、木板与桌面间的动摩擦因数均为μ，木板质量为3m，则木板所受桌面给的
﹣7
＝20，（﹣7）2＝49，