晚上10点时30分就是21时30分______.(判断对错)
晚上10时30分就是22时30分,故原来的说法是错误的.
故答案为:×.
I plan to go back home to visit my family during the Spring Festival, but if I can't get the train ticket, I still
have an________plan: to visit the museums.[ ]
A.alternate
B.alternative
C.absolute
D.appreciable
流行病学研究范围为()
A.传染病
B.非传染病
C.健康问题
D.原因不明的疾病
E.一切疾病和健康