Quickly!Tom,give me ______pen to mark the page.I see______under the book. A./;it B.a;that C.the;one
下列物质在氧气中燃烧,产生大量白烟的是( ) A. 木炭 B. 铁丝
完形填空 My name is Bob. I’m a middle school student. My home is about two miles 1 school. I usually leave 2 school at about 6: 30. I usually get to school 3 . It takes me about 20 minutes. But
—So,Nancy,you had no difficulty finding your way here? —_____________. A.Yes,no difficulty B.No,none at all C.Yes,no problem D.Nonsense
作为国家正在实施的“西气东输”工程终点站,上海将逐渐改变以煤、石油为主的能源结构,这对解决城市环境污染意义重大。目前上海大部分城市居
22、从1948年到1950年,欧洲共有16个国家接受了美国130多亿美元的援助,其中90%是赠予,10%是贷款。下列各项中,与此史实有关的是( ) A.杜鲁门主义
图(a)为“研究平抛运动”的实验装置,斜槽末端B处已经水平,图(b)是在斜槽末端B处对接了平板P。利用这套装置可以测量小物块Q 与平板P 之间的动摩擦
There was a (an) _______ silence in the live interview, when no one knew what to say to the audience. A. thorough B. adequate C. desperate D. awkwar