We always with each other in the Spring Festival.
A：have fun talking
B：have fun to talk
C：have a fun time to talk
D：have much time talking
下列叙述除哪一项外都可能感染蛔虫病( )
叶芽顶端生长点的作用是
配制10％的氯化钠溶液时，会引起溶液中氯化钠的质量分数偏小的是(可多选) ( )
