下列说法中哪种正确( )
A.生物的遗传现象是普遍存在的,而变异现象不是普遍存在的
B.基因控制生物的性状
C.生物体的所有性状都能遗传
D.人的血型是不可以遗传的
答案:B
高热的患儿,应予头部偏向一侧,防止呕吐物流入气管造成窒息。
There was a big sea bird that was very beautiful. One day, the sea bird (1) to a country and stayed outside of a palace. The Emperor asked his men to bring it to the palace. Then he said," As a (2) for the sea bird, we’ll set up the band and get the best food and wine ready for it. "(3) they played the best music for the sea bird, but it looked (4) . The Emperor introduced the most delicious food and best wine and asked the bird to have them. But the sea bird (5) After three days without eating or drinking, the sea bird (6) .The Emperor said (7) , "Why didn’t you eat I gave you all of the (8) !"The story tells us that what some people believe to be the best music and the best food aren’t so for (9) . Feed a bird according to a bird’s wants, not a person’s. The (10) "Do to others as you would have others do to you. " is never really suitable or right.
第(2)空应选择()
A.welcome
B.meeting
C.host
D.guest