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四、附加题：(本大题共1小题，共15分.解答应写出文字说明，证明过程或演算步骤.) 23.(本小题满分15分) 已知函数 ． （Ⅰ）求函数 的最大值； （Ⅱ）当 时，求证 ．
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【单选题】Imagine the psychological impact upon a foe of encountering squads' of seemingly invincible warriors ______ armor and ______ superhuman capabilities.
A.
protecting with, endowing by
B.
protecting by, endowing with
C.
protected with, endowed by
D.
protected by, endowed with
【简答题】When you stay away from your home for a long time, you start to miss your good old bed, your good old parents. Believe it or not, you’re feeling homesick (想家的). You can help yourself to feel less home...
【判断题】If you talk about sports when encountering an American sports nuts, it will improve your communication.
A.
正确
B.
错误
【单选题】--Have your students ever seen the silent film? --No, they are too young ______ the old film.
A.
to seeing
B.
have seen
C.
to have seen
D.
to have
【简答题】Good nutrition (营养)and a balanced diet will help your children grow up healthily .No matter how old your kids are , you can take steps to improve nutrition and to encourage smart eating habits .Here a...
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