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（1）胃酸的主要成分是稀盐酸，它能促进胃蛋白酶的作用，使之容易被人体吸收等，但胃酸分泌过多会引起胃痛，服用含有氢氧化镁的药物可缓解这种病痛，其反应的化学方程式为______． （2）2006年5月25日，在天津市科学技术大会上，授予基于合成受体的分子识别及其纳米超分子体系的构筑等14市自然科学奖．纳米材料和纳米技术已越来越广泛地被应用到现代生产和生活的许多方面．例如为减少汽车尾气造成的大气污染，以纳米级的某种氧化物作催化剂，可使汽车尾气中有毒的一氧化碳和一氧化氮发生反应，生成两种气体，其中一种气体可以参与植物的光合作用，另一种是空气中含量最多的气体，写出该反应的化学方程式______．
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参考答案：
举一反三
【单选题】用人单位违法解除或终止劳动合同,劳动者要求继续履行劳动合同的,用人单位( )
A.
应当支付赔偿金
B.
可以支付赔偿金
C.
应当继续履行
D.
可以不继续履行
查看完整题目与答案
【单选题】What is NOT required to be contained in the oil transfer procedures ________．
A.
A line diagram of the vessel's oil transfer piping
B.
The number of persons on duty during oil transfer operations
C.
Any special procedures for topping off tanks
D.
The location and capacity of all fuel and cargo tanks on the vessel
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【单选题】如果申明一个vector vector v; 那么下面操作正确的是()
A.
v.insert("abc");
B.
cout << size(v);
C.
v.at(0) = 0;
D.
v.at(0) = "0";
查看完整题目与答案
【单选题】在下列论文标题中你觉得不最符合标题要求的是哪一个?
A.
混合共同担保之内部追偿权研究
B.
论民法典编纂中农村集体土地经营权的物权化进路
C.
职业打假的理性回归——以探求司法裁判路径为视角.doc
D.
自然资源物品法律规范的类型化选择
查看完整题目与答案
【单选题】-Students should try to do a little studying every evening throughout the term, rather than study all night during the week before the exam. ---Exactly. __________. [     ]
A.
Slow but sure win the race
B.
Delays are dangerous
C.
Practice makes perfect
D.
The early bird catches the worm
查看完整题目与答案
【单选题】We should try a good way to keep ______ teachers______ students ______. [     ]
A.
both; and; happily
B.
either; or; happy
C.
all; and; happily
D.
both; and; happy
查看完整题目与答案
【单选题】What is NOT a precaution to be taken when topping off? ______ .
A.
Reduce the loading rate
B.
Notify the engine room of the procedure
C.
Maintain communications with the dock man
D.
Give the operation your undivided attention
查看完整题目与答案
【单选题】下列论文选题中，标题不规范的是：
A.
IPS 研究综述
B.
“于无声处听惊雷”——从〈平凡的世界〉中透析路遥的悲剧意识
C.
复杂散射波场的深度学习反演成像法
D.
放线菌 IPS-54 代谢产物的农用活性
查看完整题目与答案
【单选题】--- Students should try to do a little studying every evening throughout the term, rather than study all night during the week before the exam. --- Exactly. ____________.
A.
Practice makes perfect
B.
The early bird catches the worm
C.
Slow but sure wins the race
D.
Delays are dangerous
查看完整题目与答案
【单选题】What is meant by the term“luffing the boom”of a crane（）．
A.
Stopping the boom
B.
Topping or lowering the boom
C.
Moving the boom left or right
D.
All of the above
查看完整题目与答案
相关题目：
【单选题】用人单位违法解除或终止劳动合同,劳动者要求继续履行劳动合同的,用人单位( )
A.
应当支付赔偿金
B.
可以支付赔偿金
C.
应当继续履行
D.
可以不继续履行
查看完整题目与答案
【单选题】What is NOT required to be contained in the oil transfer procedures ________．
A.
A line diagram of the vessel's oil transfer piping
B.
The number of persons on duty during oil transfer operations
C.
Any special procedures for topping off tanks
D.
The location and capacity of all fuel and cargo tanks on the vessel
查看完整题目与答案
【单选题】如果申明一个vector vector v; 那么下面操作正确的是()
A.
v.insert("abc");
B.
cout << size(v);
C.
v.at(0) = 0;
D.
v.at(0) = "0";
查看完整题目与答案
【单选题】在下列论文标题中你觉得不最符合标题要求的是哪一个?
A.
混合共同担保之内部追偿权研究
B.
论民法典编纂中农村集体土地经营权的物权化进路
C.
职业打假的理性回归——以探求司法裁判路径为视角.doc
D.
自然资源物品法律规范的类型化选择
查看完整题目与答案
【单选题】-Students should try to do a little studying every evening throughout the term, rather than study all night during the week before the exam. ---Exactly. __________. [     ]
A.
Slow but sure win the race
B.
Delays are dangerous
C.
Practice makes perfect
D.
The early bird catches the worm
查看完整题目与答案
【单选题】We should try a good way to keep ______ teachers______ students ______. [     ]
A.
both; and; happily
B.
either; or; happy
C.
all; and; happily
D.
both; and; happy
查看完整题目与答案
【单选题】What is NOT a precaution to be taken when topping off? ______ .
A.
Reduce the loading rate
B.
Notify the engine room of the procedure
C.
Maintain communications with the dock man
D.
Give the operation your undivided attention
查看完整题目与答案
【单选题】下列论文选题中，标题不规范的是：
A.
IPS 研究综述
B.
“于无声处听惊雷”——从〈平凡的世界〉中透析路遥的悲剧意识
C.
复杂散射波场的深度学习反演成像法
D.
放线菌 IPS-54 代谢产物的农用活性
查看完整题目与答案
【单选题】--- Students should try to do a little studying every evening throughout the term, rather than study all night during the week before the exam. --- Exactly. ____________.
A.
Practice makes perfect
B.
The early bird catches the worm
C.
Slow but sure wins the race
D.
Delays are dangerous
查看完整题目与答案
【单选题】What is meant by the term“luffing the boom”of a crane（）．
A.
Stopping the boom
B.
Topping or lowering the boom
C.
Moving the boom left or right
D.
All of the above
查看完整题目与答案
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