The word "jungle"probably means______.
A. boundless desert with very little plant life
B. large apartment building with pleasing surroundings
C. wild land overgrown with thick bushes and trees
D. snow-covered mountain top in very cold areas
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The students are encouraged to provide ______ service to the poor students.
A. valuable
B. volcano
C. voluntary
D. voyage
斯皮尔曼的二因素说指液态智力和晶态智力。
A. 正确
B. 错误
The new model costs twice______last year's.
A. more than
B. as much as
C. as many as
D. than
In other words, all mammals, ______their sizes are, breathe once for every four heartbeats.
A. however
B. regardless
C. whatever
D. according
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