小蚕期各龄蚕的适宜温、湿度是多少?
参考答案:
1—2龄蚕期保持27—28℃,干湿差1.5℃;三龄26℃,干湿差2℃。
(安徽省皖南八校2009届高三第二次联考, 21)—Let’s go and have a good drink tonight
一 Have you got the first prize in the competition?
A.What for?
B.Thanks a lot.
C.Yes I’d like to
D.Why not?
下列哪项不属于自体输血()
A.术前多次采集自体血
B.手术当日采集自体血
C.术中自体血采集
D.自体失血回收
E.非补偿性输血