In the nineteenth century, Montreal grew (into) an important (transportation) and industrial center, (aided) by its many natural resources and an (abundant of )hydroelectric power.()
A. into
B. transportation
C. aided
D. abundant of
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The (conceptual) of (musical) harmony is (generally) traced to the ninth century because it is first (mentioned) in treatises of that period.()
A. conceptual
B. musical
C. generally
D. mentioned
According to the passage, one advantage of sea island cotton was its()
A. abundance of seeds
B. long fibers
C. long growing season
D. adaptability to different climates
Palcontologists (have examined) fossil embryos and hatchlings (from) three (type) of duck-billed dinosaurs to (figure out) how they matured.()
A. have examined
B. from
C. type
D. figure out
使用定程租船运输,对装卸时间的规定方法有若干种。在我国,进出口合同中一般都采用( )来计算装卸时间。
A. 按连续24小时好天气工作日
B. 按连续日
C. 按港口习惯快速装卸
D. 按连续小时