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The boundary of water of a still lake represents

ALevel surface

BHorizontal surface

Ccontour line

DA concave surface

Answer:

C. contour line


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Read the given statements and conclusions carefully and decide which of the conclusions logically follow(s) from the statements.

Statements:

All scientists working in Japan are talented.

Some Chinese scientists are working in Japan.

Conclusions:

I. No Chinese scientist is talented.

II. Some talented Chinese scientists are working in Japan.

III. All talented scientists are Japanese.

IV. Some Chinese scientists are talented.