()是指筒体中充装的是清洁的水,并以二氧化碳(氮气)为驱动气体的灭火器。
A.清水灭火器
B.水基型泡沫灭火器
C.水基型水雾灭火器
D.干粉灭火器
参考答案:A
—I really don't know if l can find his phone number. If I _____ it, I _____ you.
—Thanks a lot.[ ]
A. find, will tell
B. will find, tell
C. will find, will tell
D. find, find.
一般认为,双眼屈光参差的最大耐受度为
A.3.00D
B.1.00D
C.2.50D
D.2.00D
E.4.00D