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【简答题】
联合国决定2011年为“国际化学年”,其活动主题为“化学——我们的生活,我们的未来”。 (1)化学——使生活丰富多彩。下列主要由有机合成材料制成的是 (填序号,下同); A.涤纶制成的航天服       B.纯棉内衣      C.不锈钢茶杯     D.塑料桶 (2)化学——为健康保驾护航。的奶奶骨质疏松,医生建议奶奶使用 ; A.葡萄糖酸锌口服液       B.钙片          C.加铁酱油       D.含氟牙膏 (3)化学——让未来充满希望。纳米材料石墨烯可能帮助科学家实现修建太空天梯的构想,石墨烯由碳原子构成,请推测石墨烯可能具有的一条化学性质 。
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【判断题】普通V带传动,安装带轮时两轮的轴线的平行度没有要求。
A.
正确
B.
错误
【单选题】门静脉高压症患者,术后康复期护理中哪项不妥
A.
保证足够的休息,避免劳累和较重的体力劳动
B.
忌烟酒
C.
心情乐观愉快
D.
避免粗糙,过热,刺激性强的食物
E.
定期高压氧治疗
【单选题】( )波段的雷达可以激发和接收搜救雷达应答器的信号
A.
S波段
B.
X波段
C.
C波段
【简答题】A young officer was teaching some old soldiers. They had been in the army for many years and did not like officers, young or old. They did not think this young officer could tell them anything about h...
【简答题】They made this call on grounds of social justice and _____.
【简答题】CH Reading A Comprehension 2 Read or listen to the passage and answer the following questions. To entertain your targets successfully, you will need to plan carefully and in detail. First, you need to...
【简答题】You're going to hear some sentences which can give you a picture of the changes in women's status in America over the years. Listen carefully and fill in the blanks with what you hear. on behalf of wo...
【单选题】________波段的雷达可以激发和接收搜救雷达应答器的信号。
A.
S波段
B.
X波段
C.
C波段
D.
以上均可
【简答题】远芳侵古道,晴翠接荒城。选自 ()的()。
【单选题】Passage Three The war had begun, and George had joined the air force. He wanted to be a pilot and after some months he managed to get to the air force training school, where they taught pilots to fly'...
A.
to fight the war
B.
to fly
C.
to be pilot
D.
to be a passenger
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