少先队员要珍爱自己的红领巾。为了避免淋雨或日晒（）用红领巾作为遮挡的用具。
A.可以
B.不可以
C.由辅导员批准
D.由校长批准
参考答案：B
Five workers ____ the mine disaster. After the injured ___ to the hospital, doctors and nurses immediately got down to saving their lives. [ ]
A. was survived; rushed
B. survived from; were rushed
C. survived; was rushed
D. survived; were rushed
国家标准规定商品液氯的质量要求，氯纯度≥（）（体积百分比）；含水分≤（）（重量百分比）。
