简述女性型骨盆的特点。
参考答案：
女性型骨盆入口略呈圆形，横径较前后径稍长，坐骨棘间径≥10cm，耻骨弓较宽，是女性最常见的骨盆。
用所给动词的适当形式填空，必要时刻加助动词或情态动词。
1. He _______ ever _______ (be) to the amusement park several times.
2. I'm sorry I didn't finish _______ (write) my composition.
3. I have been _______ (skate) for two hours.
4. _______ you _______ (teach) us computer science next year.
5. I went there last year and _______ (fall) in love with it.
6. They _______ (fly) to the moon in ten years.
7. I will go to the water park if it _______ (not rain) tomorrow.
8. When Mr. Cook got home, his son _______ (listen) to the radio.
9. The old man makes a living by _______ (sell) vegetables.
10. The box is too heavy. I'm not strong enough _______ (carry) it.
2008年我国已经成功地举办了奥运会，北京能够申奥成功说明了（ ）
①中国人民已经站起来了 ②中国的经济实力提高了
③中国已成为发达国家 ④中国的国际地位明显提高
A．①②
B．③④
C．①③
D．②④
