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下图为女性生殖系统示意图，据图回答： （1）女性主要生殖器官是[ ] ，其功能是产生卵细胞和分泌雌性激素。（1分） （2）当精子到达[ 3 ] 后，一旦遇到卵细胞，就会在此处与卵细胞结合成 。 （3）图中的[ ④ ]是早期胚胎，它最终会在[ ⑤ ] 内“安家落户”，并在此经过大约280天的发育，形成成熟的胎儿；在此发育过程中，胎儿生长发育所需的养料和氧气会通过母体的 和 获得。因此母亲身体负担明显加重，所以每个人都应该孝敬母亲。
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【单选题】Section C: Directions : In this section, you will hear three short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. Afte...
A.
She buys many clothes.
B.
She buys a lot of chocolate.
C.
She eats a lot of things.
D.
She sleeps a great deal.
【单选题】Sally is a student of Grade Eight． She always works hard (11 ) her lessons． English is her favorite (12 )． She thinks that it is as (13 ) as Chinese， but it's more difficult (14 ) than Chinese． For ex...
A.
in
B.
at
C.
for
D.
of
【多选题】虚箭线的作用有()
A.
连接和断开工作之间的关系
B.
区分两项同时开始同时结束的工作
C.
正确表达相关工作的逻辑关系
D.
表达一项需消耗资源的工作
E.
表达一项需消耗时间的工作
【简答题】Nowadays most people decide quite early what kind of work they would do. When I was at school, we had to choose ( 11 ) when we were fif. I chose scientific subjects. 'In the future , scientists wi...
【简答题】根据所给的主题句及提示,写好段落的扩展句。 主题句:He was kind and shy before a group of naughty girls, but he was very strict in his teaching and with our students. 1 teach us—a lot in knowledge—as well as in morality 2 I re...
【简答题】There are understandable reasons why arguments occur about language. 2.People feel more strongly about language education than about small differences in language usage. 3.Our assessment of a person's...
【简答题】Section C Directions: In this section, you will hear several short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. Afte...
【单选题】Question 17-20 are based on the following passage. Fill in the blanks with the best transitional expression. I’ve had a lot of trouble with my car leaking oil lately. First, there’s a pool of oil two ...
A.
Before
B.
However
C.
In the meantime
D.
After
【简答题】Many children love animals and Willow Phelps is one of 1.t_______. In fact, this little American girl not only loves animals, but also has done really a lot for them. And 2.b _______ she did these kin...
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