【单选题】Valentine's Day is in February. February is the ______ month of the year.
【单选题】注射时用 70% 的酒精消毒是使细菌蛋白质
【多选题】焊接支管连接口的补强应符合()规定。
A.
当支管道的公称直径大于或等于1/2主管道公称直径时,应采用三通
B.
支管道的公称直径小于或等于50mm时,可不作补强计算
【多选题】焊接支管连接口的补强应符合( ) 规定。
A.
当支管道的公称直径大于或等于1/2 主管道公称直径时,应采用三通
B.
支管道的公称直径小于或等于50m时,可不作补强计算
【单选题】The essential argument in this article is that ______.
A.
tourism makes people unhappy and ruins whole cultures
B.
tourist agencies should do more to promote tourism at home
C.
tourists are exploited by both travel organizations and tourist countries
D.
the tourist industry is not yet able to meet the demands of today's tourists
【单选题】The article was written io explain____________.
A.
the greenhouse effect.
B.
che sola:r effects on the earth.
C.
the models of solar-weather interactions.
D.
the causes affecting weather.
【多选题】焊接支管连接口的补强应符合()规定
A.
当支管道的公称直径大于或等于1/2主管道公称直径时应采用三通
B.
支管道的公称直径小于或等于50mm时,可不作补强计算
【多选题】焊接支管连接口的补强应符合( )规定。
A.
当支管道的公称直径大于或等于1/2 主管道公称直径时,应采用三通
B.
支管道的公称直径小于或等于50mn时,可不作补强计算
【单选题】The article can be best titled as ______.
A.
Education in the Renaissance
B.
Humanism in the Renaissance