14—18世纪,把欧洲大陆人们的思想从中世纪的宗教愚昧中解放出来的两次思想解放运动,它们是指( )①文艺复兴运动 ②新海路的开辟
The style of Western art has changed many times, _______ Chinese art has changed less often. A. while B. when C. since D. before
Nowadays, more and more people are dedicated _____ the poor in the remote areas. A. to help B. in helping C. on helping D. to helping
在下列各少数民族中,人口最多的是 A.蒙古族 B.维吾尔族 C.壮族 D.回族
(08山西太原)人的机体活动和维持恒定体温需要能量。下列能为人体提供所需能量的物质是A.无机盐 B.水 C.维生素
两个等差数列和的前项和分别为,且则为( ) A、7 B、3 C、4 D、5
已知A+B=C+D为放热反应,对该反应的下列说法正确的是A.A的能量一定高于C B.反应中A与B的总能量一定高于C与D的总能量C.B的能量一定高于D
One third of the class _____ agreed to be volunteers to help the aged this vocation. A. are B. is C. has D. have