填写“住宅楼房申请投递表”要写明（）。A、楼房幢数 B、单元数 C、楼层数 D、户数

巴西人口主要分布于

A．北部沿海地区

B．亚马孙平原地区

C．东南沿海地区

D．广阔的高原地区

词形变换，用所给单词的适当形式填空。

1. In western country Sunday is the ___________(one) day of the week.

2. A lot of ___________ (visit) visited the Great Wall last year.

3. Tom decided ___________ (not be) late for school again.

4. I find it important ___________ (learn) English well.

5. A dog has four ___________ (foot).

6. How about ___________ (swim) with us?

7. John is ___________ (thin) than Carol.

8. Did you have fun ___________ (camp)?

9. We ___________ (buy) some gifts in the Gift Shop the day before yesterday.

10. Could you please ___________ (clean) the floor?

These chairs are broken. Please             .                                                                   [ ]

A. take it away

B. take away it

C. take away them

D. take them away

子宫脱垂Ⅲ度是指

A．子宫颈外口距处女膜缘少于4cm

B．子宫颈已达处女膜缘

C．子宫颈已脱出 * * 口外

D．宫颈及宫体全部脱出 * * 口外

E．子宫颈及部分宫体脱出 * * 口外

牙轮钻头的纵向振动可使钻头产生冲击作用。