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【简答题】
为了保证工程地质图的详细程度,还要求工程地质条件各因素的单元划分与图的比例尺相适应,一般规定岩层厚度在图上的最小投影宽度大于 者应按比例尺反映在图上。厚度或宽度小于 的重要工程地质单元,如软弱夹层,能反映构造特征的标志层,重要的物理地质现象等,则应采用比例尺或符号的办法在图上标示出来。 为了保证图的精度还必须保证图上的各种界线准确无误,任何比例尺的图上界线误差不得超过 mm,所以在大比例尺的工程地质测绘中要采用 定位。
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【判断题】Decide whether the following statements are true or false according to Text B. The ironies are that annual losses in export earnings in most West African cotton-producing countries are comparable to U...
A.
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B.
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A.
超强碱
B.
C.
弱碱
D.
强碱
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B.
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A.
That of a farmer whose crops have failed because the normal midseason rains did not materialize and no preparations for irrigation had been made.
B.
That of a long-distance runner who loses a marathon race because of a wrong turn that cost him twenty seconds.
C.
That of a motorist who runs out of gas a mere five miles from the nearest gas station.
D.
That of shipwrecked sailors at sea in a lifeboat, with one flask of drinking water to share among them.
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【单选题】薁类化合物可溶于
A.
强碱
B.
弱碱
C.
强酸
D.
弱酸
E.
【判断题】薁类化合物沸点高,不溶于水,但可溶于60%~65%的硫酸。
A.
正确
B.
错误
【单选题】The stone on the river bank rolled under her feet; she was _____into the river,and she called out for help.
A.
being jumped
B.
jumped
C.
pulled
D.
being pulled
【判断题】The ironies are that annual losses in export earnings in most West African cotton-producing countries are comparable to U.S. aid donations and that a European cow receives $2.50 a day in subsidies whi...
A.
正确
B.
错误
【简答题】忽报人间曾伏虎, 。
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