下列关于溢流阀的说法错误的是（）。A.高压保护 B.过载保护 C._爱下问搜题

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问题单项选择题

下列关于溢流阀的说法错误的是（）。

A.高压保护

B.过载保护

C.定压溢流

D.节流调速

答案

参考答案：D

完形填空

完形填空。
     It is    1   day of school. Li Ping wants to    2   . He wants to see his friends. He wants to meet his new
teachers.
     He    3   early in the morning. He washes and eats his breakfast. Then he    4    his bike to school.
     He sees his friends in school. He   5    them happily. Then the bell rings (铃声响了). Everyone    6
the classroom.
     Li Ping meets his new teacher.    7    is Zhao Ling. She teaches    8    this term. Li Ping likes Miss
Zhao. He thinks she is a nice teacher.

( )1. A. one
( )2. A. go to the school
( )3. A. gets up
( )4. A. has
( )5. A. plays with
( )6. A. goes
( )7. A. His name
( )8. A. their Chinese

B. first
B. go back to the school
B. get up
B. rides
B. plays
B. go to
B. Her name
B. their China

C. the first
C. go back school
C. goes up
C. sits
C. says with
C. run
C. He
C. them Chinese

D. the one
D. go back to school
D. go up
D. ride
D. talks
D. runs to
D. Her
D. them China

单项选择题

类风湿性关节炎中，最先受累的关节组织是（）

A.骨组织

B.软骨组织

C.滑膜组织

D.韧带

E.关节囊