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【简答题】
酸和碱是中学化学中重点研究的物质。请回答下列问题。 （1）胃乐新胶囊是一种治疗胃酸过多的药物，部分说明见下表。人体胃液中含有适量的胃酸，胃酸的主要成分是 ，胃乐新胶囊中的主要成分与胃酸发生反应的化学方程式为 。 （2）小有氢氧化钠溶液的试管中，加入酚酞后，又加入了稀盐酸，得到A溶液呈无色，他认为盐酸和氢氧化钠恰好完全中和，小明认为他的结论不正确，原因是 。 （3）酸、碱的中和反应，不仅发生在盐酸、硫酸等无机酸中，也可发生在有机酸中（如甲酸）。甲酸与氢氧化钠反应的化学方程式为HCOOH+NaOH=HCOONa+H 2 O,请你写出甲酸与氢氧化钙的化学方程式： 。
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【单选题】It was in the park ______ I met him the first time.
A.
that
B.
where
C.
how
D.
when
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【单选题】I would never speak to someone like that _____ they said something unpleasant to me. [     ]
A.
even if
B.
so that
C.
as if
D.
ever since
查看完整题目与答案
【单选题】When oily water separator is operating, which measure ____ is wrong.
A.
pay attention to operating parameters
B.
renew and clean separating units in time
C.
check oil level in separator to prevent overload
D.
check separating effect, if it is bad, flush with large capacity water pump
查看完整题目与答案
【单选题】I hurried _______ I wasn’t late for class.
A.
since
B.
so that
C.
as if
D.
unless
查看完整题目与答案
【单选题】Hardly_____when the parrot flew out and settled in the same tree as the cat.
A.
had Mary opened the cage
B.
Mary opened the cagethat
C.
did Mary open the cage
D.
Mary opened the cage when
查看完整题目与答案
【单选题】(单选题)日前,海南省工商局推出7条优化营商环境新举措,持续全面深化服务海南( )营商环境建设。
A.
出口加工区
B.
自贸区
C.
高新开发区
D.
自由港
查看完整题目与答案
【单选题】When it was sunny, James always ______ to the park.
A.
goes
B.
is going
C.
went
查看完整题目与答案
【简答题】饭店标出的客房价格只包括客人的住宿费用,不包括其他服务费用的计价方式称为( )。A. 美式计价 B. 欧式计价 C. 欧陆式计价 D. 百慕大计价
查看完整题目与答案
【单选题】_________shall we meet in the park?
A.
What   
B.
  Where   
C.
When
查看完整题目与答案
【单选题】I hurried ___________ I wouldn’t be late for class.
A.
since
B.
so that
C.
as if
查看完整题目与答案
相关题目：
【单选题】It was in the park ______ I met him the first time.
A.
that
B.
where
C.
how
D.
when
查看完整题目与答案
【单选题】I would never speak to someone like that _____ they said something unpleasant to me. [     ]
A.
even if
B.
so that
C.
as if
D.
ever since
查看完整题目与答案
【单选题】When oily water separator is operating, which measure ____ is wrong.
A.
pay attention to operating parameters
B.
renew and clean separating units in time
C.
check oil level in separator to prevent overload
D.
check separating effect, if it is bad, flush with large capacity water pump
查看完整题目与答案
【单选题】I hurried _______ I wasn’t late for class.
A.
since
B.
so that
C.
as if
D.
unless
查看完整题目与答案
【单选题】Hardly_____when the parrot flew out and settled in the same tree as the cat.
A.
had Mary opened the cage
B.
Mary opened the cagethat
C.
did Mary open the cage
D.
Mary opened the cage when
查看完整题目与答案
【单选题】(单选题)日前,海南省工商局推出7条优化营商环境新举措,持续全面深化服务海南( )营商环境建设。
A.
出口加工区
B.
自贸区
C.
高新开发区
D.
自由港
查看完整题目与答案
【单选题】When it was sunny, James always ______ to the park.
A.
goes
B.
is going
C.
went
查看完整题目与答案
【简答题】饭店标出的客房价格只包括客人的住宿费用,不包括其他服务费用的计价方式称为( )。A. 美式计价 B. 欧式计价 C. 欧陆式计价 D. 百慕大计价
查看完整题目与答案
【单选题】_________shall we meet in the park?
A.
What   
B.
  Where   
C.
When
查看完整题目与答案
【单选题】I hurried ___________ I wouldn’t be late for class.
A.
since
B.
so that
C.
as if
查看完整题目与答案
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