党的十九届五中全会审议并通过了《中共中央关于制定国民经济和社会发展第十四个五年规划和二 O三五年远景目标的建议》;2035年远景目标是（
（09年衡阳八中月考）关于波速公式v=λf，下面哪几句话是正确的A．适用于一切波 B．对同一机械波来说，通过不同的介质时，只有频率f不变C．
2013年4月20日四川雅安发生7.0级地震，灾区饮用水与食品安全备受关注． （1）水中难闻的异味，可添加活性炭除去，这是利用了活性炭的_________性． （2
—Do you think that man will come to your help? —I really don’t know a person like him can help me with. A.how B.what
I never doubt ______ his advice is of great ______ to me.A．that; valuableB．if; valueC．whether; valuableD．that; value
某同学在刷牙时经常发现牙龈出血，你建议该同学在饮食上应多吃 A．青菜 B．肥肉 C．动物的肝脏 D．牛奶
— It is around 100 years, known to us all, ______ the first modern Olympic Games was held. — It really is. But were _____ ? A. that; was that B. since; was it C. after; is that
