Youth volunteers from Beijing University visited Songtang Hospital, a care clinic for the aged and dying patients, during the second Global Youth Service Day on April 21．Thirty student volunteers fr
（2009·广东17）温家宝在今年的“世界读书日”说，读书决定一个人的修养和境界。这表明读书 （ ） A.可以获得不同的文化知识
对下列装置的叙述错误的是 A．X如果是HCl，则不论a和b用导线连接还是a和b分别连接直流电源正、负极时，H+的移动方向均相同 B．X如果是硫酸铜，a
The chemistry teacher demanded that the laboratory report _______ immediately after the experiment was done. A. to be written B. would be written C. be written
某大学生自主创业，在网上销售一种新上市的玩具，进价为20元。试营销阶段发现：当销售单价是25元时，每天的销售量为250件，销售单价每上涨1元，每
钒是一种熔点很高的金属，具有良好的可塑性和低温抗腐蚀性，有延展性、硬度大，无磁性。广泛应用于钢铁、航空航天、能源、化工等领域。中铝集
Her face went red _____ he had said. A. because that B. because what C. because of what D. because
的值等于( )
B．－
