My students found the book______: it provided them with all abundance of information on the subject.
A. enlightening
B. distracting
C. defusing
D. confusing
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The remarkable______of life on the Galopagos Islands inspired Charles Darwin to establish
A. diversion
B. density
C. diversity
D. duplication
Callum: I______sometimes, just like most kids. But then I usually got down to work in the
A. got through
B. pulled up
C. messed around
D. stepped aside
—Learning a language isn’t easy. It takes time. —I agree. ______. There’s no short cut.
All roads lead to Rome
B. Rome wasn’t built in a day
C. Time and tide wait for no man
D. Slow but sure wins the race
圆柱体的侧面积扩大到原来的8倍,高扩大到原来的2倍,则底面半径扩大到原来的倍数是().
A. 2
B. 4
C. 8
D. 2/π
E. 8/π