在含有大量脂肪油类药物的片剂处方中，应选用的吸收剂是A．糊精_爱下问搜题

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问题单项选择题

在含有大量脂肪油类药物的片剂处方中，应选用的吸收剂是

A．糊精

B．乳糖

C．磷酸氢钙

D．淀粉、糖粉和糊精的混合粉

E．甘露醇

答案

参考答案：C

完形填空

完形填空。

     I have two friends.  1 names are Lucy and Lily. They  2 from Canada. They  3 English. My English is
poor. They often help me  4 English at home. I help them  5 their Chinese. We help  6 other. They are twins
(双胞胎). They  7 the same. We are in the same grade, but we are in different  8 . I like  9 and they like me.
They have a pet. It is a cat.  10 name is Mimi. We like it very much.

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( )2. A. live
( )3. A. say
( )4. A. study
( )5. A. at
( )6. A. every
( )7. A. look
( )8. A. grade
( )9. A. they
( )10. A. It

B. Our
B. live in
B. speak
B. to studying
B. in
B. one
B. like
B. class
B. them
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C. They
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C. tell
C. studying
C. with
C. each
C. have
C. classes
C. their
C. His

D. Their
D. comes
D. think
D. studies
D. and
D. very
D. know
D. school
D. theirs
D. Hers

填空题

【化学 ——选修3：物质结构】（15分）

氮元素可形成卤化物、叠氮化物及络合物等。

(1)NF₃构型为三角锥形，沸点为－129 ℃；可在铜催化作用下由F₂和过量NH₃反应得到。NF₃属于________晶体.

(2)氢叠氮酸(HN₃)是一种弱酸，它的酸性类似于醋酸，微弱电离出H^＋和N。

①与N互为等电子体的分子、离子有______、________(各举1例)，由此可推知N的空间构型是______形。

②叠氮化物、氰化物能与Fe³^＋、Cu²^＋及Co³^＋等形成络合物，如Co[(N₃)(NH₃)₅]SO₄、[Fe(CN)₆]⁴^－。写出钴原子在基态时的价电子排布式：__________。如Co[(N₃)(NH₃)₅]SO₄、中钴的配位数为________，CN^－中C原子的杂化类型是________。

(3)由叠氮化钠(NaN₃)热分解可得纯N₂：2NaN₃(s)===2Na(l)＋3N₂(g)，有关说法正确的是________(选填序号)。

A．NaN₃与KN₃结构类似，前者晶格能较小

B．第一电离能(I₁)：N>P>S

C．钠晶胞结构如图，该晶胞分摊2个钠原子

D．常温下，氮气很稳定，是因为氮的电负性小