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【简答题】
取两支试管，分别加入4mL0.01mol/L的KMnO 4 溶液，然后向试管①中加入0.1mol/LH 2 C 2 O 4 溶液2mL，记录溶液褪色所需的时间；向试管②中加入0.2mol/L H 2 C 2 O 4 溶液2mL，记录溶液褪色时间，（1）实验表明 褪色更快些。 （2）写出反应的化学方程式 。 （3）在由水电离产生的H ＋ 浓度为1×10 － 13 mol·L － 1 的溶液中，一定能大量共存的离子组是 ① K ＋ 、Cl － 、NO 3 － 、S 2 － ② K ＋ 、Fe 2 ＋ 、I － 、SO 4 2 － ③ Na ＋ 、Cl － 、NO 3 － 、SO 4 2 － ④Na ＋ 、Ca 2 ＋ 、Cl － 、HCO 3 － ⑤ K ＋ 、Ba 2 ＋ 、Cl － 、NO 3 － ⑥C 2 O 4 2- 、Br － 、K + 、Cl －
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举一反三
【多选题】Which of the following could be described as types of summary?
A.
News headlines—in newspapers or on the radio or TV
B.
The blurb（简介） on the back cover of a paperback novel
C.
A short story in a magazine
D.
A newspaper account of a scientific report
E.
An essay done by a university student
F.
Extracts （摘录） from a long political speech
G.
Notes a student made while listening to a lecture
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【单选题】患者,男,40岁,建筑工人,被一个混凝土块砸在腿上,随后不能跖屈踝关节和足内翻。最有可能受损的肌是
A.
趾长伸肌
B.
胫骨前肌
C.
胫骨后肌
D.
腓骨长肌
E.
腓骨短肌
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【单选题】DEF Co has decided to include in each customer’s account number a check digit which will have an arithmetical relationship to other digits in the account number. This is an example of which of the fol...
A.
Input control
B.
Back-up control
C.
Output control
D.
Contingency control
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【单选题】患者男性,38岁,突然发热,体检除显著贫血貌外,无特殊阳性体征。实验室检查:外周血象全血细胞减少,网织红细胞明显减少;骨髓象提示骨髓增生低下。诊断为再生障碍性贫血,请问下列治疗再生障碍性贫血时,哪项错误
A.
部分患者可以做脾切除
B.
感染时用氯霉素
C.
输新鲜血
D.
骨髓移植
E.
注射雄激素
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【单选题】The following are types of management accounting techniques: (i) Flow cost accounting (ii) Input/output analysis (iii) Life-cycle costing (iv) Activity based costing Which of the above techniques coul...
A.
(i) only
B.
(i) and (ii) only
C.
(i), (ii) and (iii) only
D.
All of the above
查看完整题目与答案
【单选题】Which of the following types of income are exempt from income tax? (1) Interest on company loan stock listed on a recognised stock exchange;(2) Dividends on shares held in a New Individual Savings Acc...
A.
1, 2 and 4
B.
2, 4 and 5
C.
2, 3 and 5
D.
1, 4 and 5
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【单选题】患者男性,28岁,突然发热,体检除显著贫血貌外,无特殊阳性体征。实验室检查:外周血象全血细胞减少,网织红细胞明显减少;骨髓象提示骨髓增生低下。诊断为再生障碍性贫血,请问下列治疗再生障碍性贫血时,哪项错误
A.
部分患者可以做脾切除
B.
感染时用氯霉素
C.
输新鲜血
D.
骨髓移植
E.
注射雄激素
查看完整题目与答案
【简答题】课后作业: 1..Reorder the following passage and then translate it into Chinese. 1 There is interest paid on this money. 2 There is no interest paid on this type of account. 3 With a deposit account, howeve...
查看完整题目与答案
【单选题】请问下列治疗再生障碍性贫血时，哪项错误
A.
部分患者可以做脾切除
B.
感染时用氯霉素
C.
输新鲜血
D.
骨髓移植
查看完整题目与答案
【单选题】Which TWO of the following types of income are exempt from income tax? (1) Interest on an NS&I Investment account (2) Premium bond prizes (3) Interest on UK Government stocks (‘gilts’) (4) Dividends o...
A.
1 and 2
B.
1 and 4
C.
2 and 3
D.
2 and 4
查看完整题目与答案
相关题目：
【多选题】Which of the following could be described as types of summary?
A.
News headlines—in newspapers or on the radio or TV
B.
The blurb（简介） on the back cover of a paperback novel
C.
A short story in a magazine
D.
A newspaper account of a scientific report
E.
An essay done by a university student
F.
Extracts （摘录） from a long political speech
G.
Notes a student made while listening to a lecture
查看完整题目与答案
【单选题】患者,男,40岁,建筑工人,被一个混凝土块砸在腿上,随后不能跖屈踝关节和足内翻。最有可能受损的肌是
A.
趾长伸肌
B.
胫骨前肌
C.
胫骨后肌
D.
腓骨长肌
E.
腓骨短肌
查看完整题目与答案
【单选题】DEF Co has decided to include in each customer’s account number a check digit which will have an arithmetical relationship to other digits in the account number. This is an example of which of the fol...
A.
Input control
B.
Back-up control
C.
Output control
D.
Contingency control
查看完整题目与答案
【单选题】患者男性,38岁,突然发热,体检除显著贫血貌外,无特殊阳性体征。实验室检查:外周血象全血细胞减少,网织红细胞明显减少;骨髓象提示骨髓增生低下。诊断为再生障碍性贫血,请问下列治疗再生障碍性贫血时,哪项错误
A.
部分患者可以做脾切除
B.
感染时用氯霉素
C.
输新鲜血
D.
骨髓移植
E.
注射雄激素
查看完整题目与答案
【单选题】The following are types of management accounting techniques: (i) Flow cost accounting (ii) Input/output analysis (iii) Life-cycle costing (iv) Activity based costing Which of the above techniques coul...
A.
(i) only
B.
(i) and (ii) only
C.
(i), (ii) and (iii) only
D.
All of the above
查看完整题目与答案
【单选题】Which of the following types of income are exempt from income tax? (1) Interest on company loan stock listed on a recognised stock exchange;(2) Dividends on shares held in a New Individual Savings Acc...
A.
1, 2 and 4
B.
2, 4 and 5
C.
2, 3 and 5
D.
1, 4 and 5
查看完整题目与答案
【单选题】患者男性,28岁,突然发热,体检除显著贫血貌外,无特殊阳性体征。实验室检查:外周血象全血细胞减少,网织红细胞明显减少;骨髓象提示骨髓增生低下。诊断为再生障碍性贫血,请问下列治疗再生障碍性贫血时,哪项错误
A.
部分患者可以做脾切除
B.
感染时用氯霉素
C.
输新鲜血
D.
骨髓移植
E.
注射雄激素
查看完整题目与答案
【简答题】课后作业: 1..Reorder the following passage and then translate it into Chinese. 1 There is interest paid on this money. 2 There is no interest paid on this type of account. 3 With a deposit account, howeve...
查看完整题目与答案
【单选题】请问下列治疗再生障碍性贫血时，哪项错误
A.
部分患者可以做脾切除
B.
感染时用氯霉素
C.
输新鲜血
D.
骨髓移植
查看完整题目与答案
【单选题】Which TWO of the following types of income are exempt from income tax? (1) Interest on an NS&I Investment account (2) Premium bond prizes (3) Interest on UK Government stocks (‘gilts’) (4) Dividends o...
A.
1 and 2
B.
1 and 4
C.
2 and 3
D.
2 and 4
查看完整题目与答案