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问题 单项选择题

当出链长度与水深之比为2.5时，拖锚制动：（）

A.锚的抓力约为锚重的1.2倍

B.锚的抓力约为锚重的1.4倍

C.锚的抓力约为锚重的1.6倍

D.锚的抓力约为锚重的1.8倍

答案

参考答案：B

改错题

单句改错。  

1.This question is very easier than that one.                    

                       A    B     C                   D                       

2. Jimmy is a little funny than me.            

                 A  B      C      D                                

3.I need your help tomorrow. Can you come  a little early?        

        A            B                      C                               D          

4. Shanghai is larger than any other cities in China.               

                  A   B                   C        D                        

5. My  parents  are all  teachers  in a  middle school.                    

                         A   B                C              D          

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单项选择题 A1/A2型题

急性阑尾炎穿孔术后一周，持续高热、尿频、排便次数增多，应考虑为（）。

A.泌尿系感染

B.肠炎

C.肠间隙脓肿

D.盆腔脓肿

E.直肠周围脓肿
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