单项选择题

Lebanon is one of the few countries in the Middle East with a comparatively well- developed labour movement. Trade unions have secured some tangible gains, such as fringe benefits and better working conditions.

A．substantial
B．trivial
C．momentous
D．crucial
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单项选择题
Every community requires a wholesome, dependable supply of water, and every community generates liquid and solid wastes.
A．considerable
B．healthful
C．immediate
D．secure
单项选择题
Although the main motivation for a renewed interest in logic was a search for the foundations of mathematics, the chief protagonists of this effort extended their inquiry into the domain of the natural languages.
A．explorers
B．dedicators
C．advocates
D．analysts
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