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【单选题】
腮腺的特点不正确的是A.
属于浆液性腺
B.
形状很不规则
C.
外面包有腮腺鞘
D.
导管开口于上颌第二前磨牙相对的颊粘膜上
E.
腮腺实质内有淋巴
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举一反三
【单选题】—I don't like chicken ______meat, ______I like fish very much.
A.
and; and
B.
and; but
C.
or; but
D.
or; and
【简答题】Translate the following sentences into Chinese .(英译汉) The lubrication system makes sure that every moving part in the engine gets oil so that it can move easily.
【单选题】为了除去混在 CO 2 中的 SO 2 和 O 2 ,下列试剂使用顺序正确的是 ( ) 1 饱和 Na 2 CO 3 溶 液 2 饱和 NaHCO 3 溶液 3 浓 H 2 SO 4 4 灼热铜网 5 生石灰
A.
①③④
B.
②③④
C.
②④③
D.
③④⑤
【单选题】It will be __ wonderful world if all nations live in __ peace with one another. [ ]
A.
the; 不填
B.
a; 不填
C.
the; the
D.
a; a
【单选题】某温度下，向一未饱和的Na 2 CO 3 溶液中加入20g无水Na 2 CO 3 或加入50gNa 2 CO 3 ?7H 2 O晶体，都恰好使溶液达到饱和，则Na 2 CO 3 在此温度时的溶解度为（ ）
A.
25g
B.
75g
C.
50g
D.
10g
【简答题】英译汉:lubrication system
【简答题】在25℃，CO2气体压力等于1标准大气压时，CO2饱和水溶液中CO2的浓度约为0.034 mol.dm-3，计算溶液的pH和[CO32-]。通常把溶入的CO2都当成H2CO3，利用如下平衡式计算： H2CO3+H2O HCO3-+H3O+ Ka1=4．5×10-7
【单选题】听力原文：M: Would you like to go to see the movies with me this evening? W: I'd love to. But I’m just getting over the flu. What will the woman probably do this evening?
A.
Go to see the movies.
B.
Stay at home.
C.
Do some sports.
【单选题】I like comedies _______ I don't like documentaries at all; they're more than boring. [ ]
A.
and
B.
but
C.
or
D.
for
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