下列有关水手的瞭望职责表述不正确或欠妥的是：（） A.应使用一

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问题单项选择题

下列有关水手的瞭望职责表述不正确或欠妥的是：（）

A.应使用一切可以利用的手段，主要是视觉手段，以保持正规有效地瞭望

B.瞭望人员应与当值驾驶员保持有效的信息沟通，应确认信息传递的畅通和闭环

C.瞭望人员在瞭望期间应考虑到灯光、能见度条件的改变、通航密度、来自岸上背景亮光对瞭望和判断的影响

答案

参考答案：A

单项选择题

设有7项任务，分别标识为a，b，c，d，c，f和g，需要若干台机器以并行工作方式来完成，它们执行的开始时间和完成时间如下表所示。
表1-5 任务时间

A．2
B．3
C．4
D．5

改错题

短文改错

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共

有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：

1.每处错误及其修改均仅限一词;

2.只允许修改10处,多者(从第11处起)不计分。

One day, a blind man was sitting on street with a sign by his feet that read: “I am blind, please

help me. ” A gentleman walked through and stopped to have a look at the sign, noticed only a few

coin in the man's hat. He took out some bills from his wallet and put it into the hat. And then he turned

the sign over again, wrote a new message and left. Several hours later, the gentleman returned. To his

happy, he found the hat almost full of bills and coins. He didn't expect that the new message does work,

which read: “It’s spring now, and I can't see it.”

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