________________[A] puzzled by [B] hostile to [C] pessimistic about [D] unprepared fo
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[A] puzzled by [B] hostile to [C] pessimistic about [D] unprepared fo
相关考题：
No one has yet succeeded in explaining the _____ of how life began. A、causeB、problemC、puzzleD、logic
The main idea of this passage is ______.A. many animals die during hibernationB. hibernation protects animals during the wintertimeC. scientists feel puzzled about hibernationD. some bats hibernate and others do not
下列关于Fo值的正确表述是A、用Fo评价灭菌效果、方便、准确B、Fo的测定需要精度高的热电偶准确测量定样品内的温度C、Fo是验证干法灭菌可靠性的参数D、Fo是一个定值E、测定Fo的参比温度为115℃
__________ for such a dangerous journey, many people died because of hunger and cold. A. UnpreparingB. UnpreparedC. Having unpreparedD. To have unprepared
However,attimesthisbalanceinnatureis________,resultinginanumberofpossiblyunforeseeneffects.A)troubledB)disturbedC)confusedD)puzzled
It was just at the moment __________he worked out the problem that he had long been puzzled about.A．sinceB．WhichC．becauseD．that
The author’s attitude about Japan s economy is( ) A.cautiously optimistic B.quite undecided C.rigorously neutral D.slightly pessimistic
单选题It is obvious that the author of the passage ______.Ashows indifference to the situation in the developed countriesBis very concerned about global population problemsCfeels confident that the problem of population growth can be soon resolvedDis pessimistic about the future of those high-fertility
单选题It was just at the moment______ he worked out the problem that he had long been puzzled about.AsinceBwhichCbecauseDthat
填空题带宽为B＝fm－fo，带通型信号B＜fo，其抽样频率fs取（）。