题目内容

By“ the uninitiated indi vidual”(Para.1,Line. 4) the author refers tothe person()

A. who has not been instructed how to use a life preserver
B. who has a little experience in using a life preser ver
C. who uses a life preserver without per miss ion
D. who becomes nervous before a disas ter

查看答案
更多问题

标定NaOH溶液的基准物质有草酸和无水Na2CO3()

According to the passage,a life be first of all()

A. adjustable
B. comf ortable
C. self -evident
D. selfrighting

标准偏差的计算公式:S=()

United States Coast Guard does NOT require the life preserver to bemade_

A. with as few strings as possible
B. capable of being worn on both sides
C. according to each wearer s size
D. confortable and light to we ar

答案查题题库