细菌没有真正的细胞核.______.
细菌的结构有细胞壁、细胞膜、细胞质、遗传物质等结构,虽没有成形的细胞核,但是遗传物质同样能传递遗传信息.
故答案为:√
The great millionaire gave away all his fortune to the charity and lived a simple life,________.
A.happy and content
B.happily and content
C.happily and peaceful
D.happy and peace
手术室、婴儿室、产房最适宜的温度是()。
A.16℃~l8℃
B.18℃~20℃
C.18℃~22℃
D.22℃~24℃
E.24℃~26℃