硫在氧气里燃烧时产生( )
A.蓝紫色火焰
B.白烟
C.耀眼强光
D.淡蓝色火焰
硫在氧气中燃烧,产生明亮的蓝紫色火焰,放出大量的热,生成能使澄清的石灰水变浑浊的气体.
故选A.
Make sentences with the words. 组词成句。
1. play we ping-pong (.)
2. school lunch at eat they (.)
3. time for It's dinner (.)
4. our what in can see you classroom (?)
护理组织文化建设不正确的是()
A.易接受性
B.群众性
C.针对性
D.独特性
E.交流性