正确答案: B

错误

题目：金藻门植物都具含纤维素和果胶质的细胞壁。( )

解析：B

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举一反三的答案和解析：

[单选题]What is the main idea of the passage?

Our life is governed by the law of time.

[单选题]If it has been over 12 hours since you missed a dose, you should .

take the next dose at your regular time

[单选题]This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.

should

[单选题]C.The term “multitasking” originally referred to a computer’s ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (人脑训练) involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much multitasking can lead to increased stress, anxiety and memory loss.

To help them perform. daily tasks more easily.

[单选题]-- Do you think it's a good idea to make friends with your students?-- , I do. I think it's a great idea.

ActuallyD．Generally