车次号的边框中紫色代表偏离时间()。
A.早点≤-120秒
B.晚点>15秒并且<120秒
C.早点>-120秒并且<-15秒
D.晚点≥120秒
参考答案:B
选出错误的选项并改正。
( ) 1. Jenny has much dresses. ______________
A B C
( ) 2. I'm going to playing the guitar. ______________
( ) 3. His family lives in a apartment. ______________
( ) 4. They go to the park in a sunny day. ______________
( ) 5. Many flowers blooms in spring. ______________
生活饮用水水质卫生标准规定大肠菌群不超过()。
A.100个/ml
B.100个/3ml
C.3个/ml
D.100个/100ml
E.3个/1000ml