显微镜下观察人体口腔上皮细胞,发现染色最深的结构是( )
A.细胞膜
B..细胞核
C..线粒体
D..细胞质
答案:B
财产保险可分为( )。
A.财产损失保险
B.责任保险
C.信用保险
D.一切危险保险
E.保证保险
情景交际。
A: Excuse me. 1 the post office?
B: Go down this street and turn right at the second crossing. Go up the road to the end, you'll find it.
A: 2 ?
B: It's about 500 meters away from here.
A: Oh, that's quite a long way.
B: Yes, __ 3 take a bus.
A: 4 ?
B: You can take the No.7 bus. It'll take you there.
A: 5 ?
B: It takes about fifteen minutes.
A: Thanks very much.
B: My pleasure.