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【判断题】
前自由表面修正系数Mf与半椭圆表面裂纹的形状参数（短长轴之比）有关，且该值越小，修正系数越大。A.
正确
B.
错误
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【简答题】肥料是粮食的“粮食”，在春耕中，肥料的合理使用是必不可少的一环，我们常说的肥料三要素是指()、()、() A氮 B磷 C钾 D硫
【简答题】航空运输的计费重量，以实际毛重表示时，计费重量的最小单位是( )。 A．0.5KG B．0.1KG C．2KG D．5KG
【单选题】Here, so profligate has its use become the air conditioner is almost______the automobile of the national tendency to overindulge in every technical possibility, to sue every convenience to such excess...
A.
as glaring symptom as
B.
as glaring a symptom as
C.
as symptom glaring as
D.
as glaring as a symptom
【简答题】In general, MFN means that every time a country lowers a trade barrier or opens up a market, it has to do so for the same goods or services from all its trading partners-whether rich or poor, weak or ...
【简答题】In nearly every country, the most popular hobby is stamp collecting. There are probably only a few boys and girls who have not collected stamps at some time. Most children do not collect stamps seriou...
【单选题】Here, so extravagant and wasteful has its use become the air conditioner is almost as glaring symptom as the automobile of the national tendency to overindulge in every technical possibility, to sue e...
A.
almost as glaring a symptom as
B.
almost as glaring symptoms as
C.
nearly as glaring as a symptom
D.
nearly as symptom glaring as
【简答题】(小数点后保留三位小数)某船定额吨位 20000 吨,某段时间活动情况如图表所示: 装 15000 吨 装 10000 吨 装 15000 吨 ↓ ↓ ↓ A B C A B 600 海里 ↓ 500 海里 ↓ 400 海里 ↓ 600 海里 卸 10000 吨 卸 15000 吨 卸 15000 吨 在港时间 20 天,航行 18 天,修理 2 天; A 、 B 、 C 表示港口。求: 1、载重...
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