当光束通过下列分散系:①尘埃的空气 ②稀硫酸 ③蒸馏水 ④墨水,能观察到有丁达尔现象的是 [ ]
A.①②
B.②③
C.①④
D.②④
答案:C
Fortunately,the illness is fully treatable if _______within ten days.
A. being found
B. find
C. finding
D. found
某非标准条包装卷烟每盒30支,每条12盒,不含增值税调拨价每条95元,则该卷烟换算成每标准箱消费税额有( )。
A.3500元
B.3650元
C.5250元
D.6087.5元