问题 单项选择题

原发性高血压的病因包括()

A.精神紧张

B.高盐高脂饮食

C.肾脏疾病

D.遗传

E.病因不明,是一种多因素疾病

答案

参考答案:E

单项选择题
排序题

将下列句子重新排列。组成一段对话。

( )1. Oh, I don't play baseball.                                                                                    

( )2. It's in my backpack. Do you have a tennis racket?                                                            

( )3. Let's play tennis.                                                                                            

( )4. That sounds good. Where's your tennis?                                                                        

( )5. Let's play volleyball.                                                                                        

( )6. No,he doesn't.He plays baseball.                                                                            

( )7. I don't like volleyball.It's boring.                                                                        

( )8. No, I don't. I have a soccer ball and a basketball, but I don't have a tennis bat.

            Does your brother have one?