原兽亚纲的原始性特征包括（）。A、体表被毛，嘴呈鸭嘴形或针形

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问题单项选择题

原兽亚纲的原始性特征包括（）。

A、体表被毛，嘴呈鸭嘴形或针形

B、卵生，具泄殖腔孔，体温不很恒定

C、有乳腺，无 * * ，体温恒定

D、卵胎生，具泄殖腔孔，体温不很恒定

答案

参考答案：B

阅读理解

阅读理解，判断正(T)误(F)。

There are four people in my family. They are my father, my mother, my sister and me. My father is a

teacher. He is 40 years old. My mother is a doctor. She works in a hospital. She likes her work very much.

My sister is a student. She is a good student. I am a student, too. I like my school.

( ) 1. My mother is a teacher.

( ) 2. My mother is 40 years old.

( ) 3. My father is a teacher.

( ) 4. I am a student.

( ) 5. I like my school.

单项选择题

网站运营评估是一个系统化进程，不必遵守以下（）原则。

A.性能与价格的均衡考虑

B.整体性与总体性相结合

C.理论与实践相结合

D.主观与客观评价相结合