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【简答题】
If the Japanese have a reputation for inscrutability, it is because they have developed ambiguity of expression to an art form.
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【简答题】为避免阻挡引入的______损耗,微波通信线路中应尽量避免障碍物的阻挡。
【简答题】A．They smoke the cigarettes at home. B．They burn the cigarettes in the kitchen. C．They leave the cigarettes burning. D．They put the cigarettes in the ashtray.
【简答题】A.They raise the temperature． B.They enlarge the area． C.They attract many tourists． D.They pollute the atmosphere．
【简答题】A．The shorter hours they work, the higher pay they can enjoy. B．The more they work, the less leisure they can enjoy. C．The shorter hours they work, the less pay they can get. D．The greater pressure th...
【单选题】桃蚜早春, 在冬寄主如桃树等蔷薇科植物上营孤雌 生殖, 大约每年4月份下旬,迁飞至十字花科、茄科 作物等侨居寄主上为害,并不断营孤雌胎生繁殖继续进行为害。直至晚秋当夏寄主衰老,不利于桃蚜生活时,迁飞到冬寄主上 产卵越冬。 问该昆虫全年生活方式为?
A.
营同寄主全周期型
B.
营异寄主全周期型
C.
不全周期型
D.
以上都不是
【简答题】A．The shorter hours they work, the higher pay they can enjoy. B．The more they work, the less leisure they can enjoy. C．The shorter hours they work, the less pay they can get. D．The greater pressure th...
【简答题】A.They suggested that they get back the money they lost． B.They claimed that they get the melody sung for commercial purposes． C.They proved that they legally own the melody of the song． D.They declar...
【多选题】粉煤灰是火力发电厂等以煤粉为燃料的燃煤炉烟道气体中所收集的粉末,由结晶体、玻璃体以及少量未燃尽的碳粒所组成。 水泥混凝土中掺入适量粉煤灰,不但可以节约水泥,而且混凝土的许多性能都可以获得改善,
A.
在用水量相同情况下，混凝土拌合物流动性、粘聚性提高，泌水性小；
B.
混凝土可泵性明显提高；
C.
早期强度低，后期强度增长快， 60d 后强度大于基准混凝土；
D.
明显增强混凝土抗渗性；
E.
提高混凝土抗化学侵蚀性、抑制碱 — 集料反应
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