题目内容

Animals have anatural ___________for survival.

A. instinct
B. hope
C. desire
D. tendency

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I was a ___________ shocked.

A. few
B. very
C. much
D. trifle

He couldn't pay his hotel bill and they wouldn't give him any more __________________.

A. debt
B. loan
C. credit
D. pawn

Companies that ignore new rivals generally go ____________________________.

A. bankbroken
B. bankcorrupt
C. broke
D. broken

数组（）方法实现从数组头部删除元素

A. pop（）
B. shift（）
C. unshift（）
D. splice（）