题目：
第二卷（共35分）
第四部分写作（共两节，满分35分）
第一节对话填空（共10小题上，每小题1分，满分10分）
（J="Jane " F="Flora" ）
J: Hi,Flora. It seems that I haven’t seen for you ages, Where have you been ?
F: Hi, Jane . Been to England for a (76) t______.
J: Oh really ? That’s great,. Did someone (77) e_______travel with you?
F: We went on a group tour, You know that would make things easy. You wouldn’t (78) w_______about this and that.
J:Yes. A pleasant time, eh?
F: A really pleasant to me. Everything we saw, Fantastic ! And the guide was a very nice guy; he also (79) l_______ us a deep impression.
J:What’s that ?
F:He once told us about the (80)b______ of his career. He was an Oxford student before. And one day when he went on his (81)w______ to a lecture, a tourist
(82) a_____ him for directions. Since he was going in the same direction,he led the way, telling legends and stories about Oxford. Before they knew it, two hours passed, and the tourist gave him ten pounds for the enjoyable morning. He then
(83) r_______ that he had a gift for making a visit (84)i________and lovely.
J: What an amazing story ! By the way , How did you travel(85)e________ in England?
F: It depends.Sometimes by udnerground or by bus.
J: If only I had such a chance !
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A解析：胎盘通常与胎儿一样由发育初期到成熟期，胎盘在不同的发育阶段超声表现不同。超声将胎盘的成熟度分为：0、Ⅰ、Ⅱ、Ⅲ级。0级见于早期、中期妊娠，提示胎盘为成熟；Ⅰ级主要见于29孕周左右，说明...
