题目内容

Fill in withwantorneedto complete each sentence.You can’t attend a good university with a low TOEFL score; you ________ to do well on the test.

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Some people ______ to learn Spanish because it’s a beautiful language.

You don’t ______ to have a college degree to work in a hotel.

I _____ to learn more about animals because I’m interested in them.

下列有关油脂的叙述中不正确的是( )

A. 油脂没有固定的熔点和沸点,所以油脂是混合物
B. 天然油脂大多数是由混甘油酯分子组成的混合物
C. 油脂是酯的一种
D. 油脂是天然高分子