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举一反三
【单选题】(2013 ·湖北武汉武昌高三联考)Smiling doesn't ________ mean you're happy.Sometimes, it just means that you're strong enough to face problems.
A.
fortunately
B.
eventually
C.
deliberately
D.
necessarily
【单选题】(2013·湖北武汉武昌区高三联考)One way to ________ species under threat of extinction—whatever the cause—is to remove them to zoos or parks and feed them there.
A.
betray
B.
resist
C.
preserve
D.
abandon