79型NO2检定管的测量范围是()。
A、0.0001%~15%
B、0.001%~15%
C、0.0001%~10%
D、0.001%~10%
参考答案:A
选出并改正下列句子中的错误。
( ) 1. Jenny's family is siting at a table. ______________
A B C D
( ) 2. He sings loud, but he is a bad singer. ______________
( ) 3. In winter, I put on my T-shirt and sandals. ______________
( ) 4. What do we need to make dumpling? ______________
细胞水肿在光镜下表现为()
A.细胞肿胀
B.胞质布满颗粒状物质
C.胞质内出现空泡
D.细胞核碎裂