法律是掌握国家 * * 的_______意志的体现。
统治阶级
When chatting with a stranger on the Internet, bear in mind______ he could be anybody, for you can’t see him _________.
A.that; in particular
B.that; in person
C.what; in detail
D.\ ; in public
孵化用水的溶氧应为()。
A、>4mg/L
B、>3mg/L
C、>2mg/L