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参考答案：
举一反三
【单选题】下列离子在水溶液中有颜色的是（）
A.
Ac 3+
B.
Th 4+
C.
PaO 2+
D.
Np 3+
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【多选题】Choose the suitable words from below and fill A, B, C......or O in each blank.
A.
resources
B.
other
C.
best
D.
As
E.
entertain
F.
take
G.
thinking
H.
mental
I.
cool
J.
reason K. performance L. wet M. next N. environmentally O. rest If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in spring than you are at any _____1____ time of the year. Spring appears to be the _____2 ____ period of the year for thinking. One _____3 ____ may be that in spring man's _____4 ____ powers are affected by the same factors that bring about great changes in all nature. Autumn is the _____5 ____ best season, then winter. _____6 ____ for summer, it seems to be a good time to _____ 7____ a long vacation from thinking! It has been found that _____8 ____ weather is much more favorable for creative _____ 9____ than is summer heat. This does not mean that all people are less intelligent in summer than they are during the _____10 ____ of the year. It does mean, however, that the mental powers of large numbers of people tend to be lowest in summer.
查看完整题目与答案
【单选题】42. Here’s my card. Let’s keep in _________.
A.
touch
B.
relation
C.
connection
D.
friendship
查看完整题目与答案
【单选题】法律关系客体，是指( )。
A.
参加或管理，监督建设活动，受建设工程法律规范调整，在法律上享有权利，承担义务
B.
审查批准国家建设计划和国家预决算，制定和颁布建设法律，监督检查国家各项建设法律的执行
C.
参加法律关系的主体享有的权利和承担的义务所共同指向的对象
D.
具有民事权利能力和民事行为能力，依法享有民事权利和承担民事义务的组织
查看完整题目与答案
【单选题】--- I promise to go shopping with you if you help me with the housework. --- ____ You are the last person to keep a promise.
A.
That’s great!
B.
How come?
C.
I don’t agree.
D.
Come off it!
查看完整题目与答案
【单选题】Here’s my card. Let’s keep in ________.2
A.
touch
B.
relation
C.
connection
D.
friendship
查看完整题目与答案
【单选题】在含有下列离子的溶液中,加入 NaCl 溶液生成白色沉淀,再加入氨水变黑的是()。
A.
Ag +
B.
Hg 2 2+
C.
Pb 2+
D.
Hg 2+
查看完整题目与答案
【单选题】患儿,女,1岁。因肺炎人院,目前喘憋明显、发绀、持续高热,经多种抗生素治疗无好转,该患儿感染的病原体可能是
A.
肺炎链球菌
B.
金黄色葡萄球菌
C.
流感嗜血杆菌
D.
大肠埃希菌
E.
腺病毒
查看完整题目与答案
【单选题】对下列各种溶液中大量共存离子的判断合理的是（　　）
A.
向无色溶液中加氯水，溶液变为橙色，溶液中一定有：SO 4 2- 、Br - 、NO 3 - 、Ag +
B.
使酚酞试液变红的溶液中可能有：K + 、Na + 、NH 4 + 、HCO 3 -
C.
在水电离出的c（H + ）=10 -5 mol/L的溶液中可能有：Na + 、AlO 2 - 、CO 3 2- 、SO 3 2-
D.
向溶液中加铝粉有氢气放出，则该溶液中一定有：K + 、Na + 、H + 、NO 3 -
查看完整题目与答案
【多选题】下列离子在水溶液中有色的是 ( )
A.
Cu 2+
B.
Fe 3+
C.
Zn 2+
D.
Cr 3+
E.
Mn 2+
查看完整题目与答案
相关题目：
【单选题】下列离子在水溶液中有颜色的是（）
A.
Ac 3+
B.
Th 4+
C.
PaO 2+
D.
Np 3+
查看完整题目与答案
【多选题】Choose the suitable words from below and fill A, B, C......or O in each blank.
A.
resources
B.
other
C.
best
D.
As
E.
entertain
F.
take
G.
thinking
H.
mental
I.
cool
J.
reason K. performance L. wet M. next N. environmentally O. rest If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in spring than you are at any _____1____ time of the year. Spring appears to be the _____2 ____ period of the year for thinking. One _____3 ____ may be that in spring man's _____4 ____ powers are affected by the same factors that bring about great changes in all nature. Autumn is the _____5 ____ best season, then winter. _____6 ____ for summer, it seems to be a good time to _____ 7____ a long vacation from thinking! It has been found that _____8 ____ weather is much more favorable for creative _____ 9____ than is summer heat. This does not mean that all people are less intelligent in summer than they are during the _____10 ____ of the year. It does mean, however, that the mental powers of large numbers of people tend to be lowest in summer.
查看完整题目与答案
【单选题】42. Here’s my card. Let’s keep in _________.
A.
touch
B.
relation
C.
connection
D.
friendship
查看完整题目与答案
【单选题】法律关系客体，是指( )。
A.
参加或管理，监督建设活动，受建设工程法律规范调整，在法律上享有权利，承担义务
B.
审查批准国家建设计划和国家预决算，制定和颁布建设法律，监督检查国家各项建设法律的执行
C.
参加法律关系的主体享有的权利和承担的义务所共同指向的对象
D.
具有民事权利能力和民事行为能力，依法享有民事权利和承担民事义务的组织
查看完整题目与答案
【单选题】--- I promise to go shopping with you if you help me with the housework. --- ____ You are the last person to keep a promise.
A.
That’s great!
B.
How come?
C.
I don’t agree.
D.
Come off it!
查看完整题目与答案
【单选题】Here’s my card. Let’s keep in ________.2
A.
touch
B.
relation
C.
connection
D.
friendship
查看完整题目与答案
【单选题】在含有下列离子的溶液中,加入 NaCl 溶液生成白色沉淀,再加入氨水变黑的是()。
A.
Ag +
B.
Hg 2 2+
C.
Pb 2+
D.
Hg 2+
查看完整题目与答案
【单选题】患儿,女,1岁。因肺炎人院,目前喘憋明显、发绀、持续高热,经多种抗生素治疗无好转,该患儿感染的病原体可能是
A.
肺炎链球菌
B.
金黄色葡萄球菌
C.
流感嗜血杆菌
D.
大肠埃希菌
E.
腺病毒
查看完整题目与答案
【单选题】对下列各种溶液中大量共存离子的判断合理的是（　　）
A.
向无色溶液中加氯水，溶液变为橙色，溶液中一定有：SO 4 2- 、Br - 、NO 3 - 、Ag +
B.
使酚酞试液变红的溶液中可能有：K + 、Na + 、NH 4 + 、HCO 3 -
C.
在水电离出的c（H + ）=10 -5 mol/L的溶液中可能有：Na + 、AlO 2 - 、CO 3 2- 、SO 3 2-
D.
向溶液中加铝粉有氢气放出，则该溶液中一定有：K + 、Na + 、H + 、NO 3 -
查看完整题目与答案
【多选题】下列离子在水溶液中有色的是 ( )
A.
Cu 2+
B.
Fe 3+
C.
Zn 2+
D.
Cr 3+
E.
Mn 2+
查看完整题目与答案
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