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【单选题】
用HCl标准滴定溶液滴定Na 2 CO 3 和NaOH的混合溶液,可得到()个滴定突跃。
A.
0
B.
1
C.
2
D.
3
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参考答案:
举一反三
【单选题】X射线的发现者是
A.
伦琴
B.
汤姆森
C.
贝克勒尔
【简答题】Nonetheless, I do remember what it was like to be an 18-year-old___________(本科生). The first-year experience is exciting, liberating and terrifying, all combined to help us grow into hood. That is...
【单选题】The law that farmers don’t need to turn over agricultural tax to the state has come into _______.
A.
effect
B.
season
C.
view
D.
power
【简答题】三、阅读理解。 In the morning Mr . Smith comes into the garden at the back of his house . He sees so much snow in the garden . Mr . Smith wants to take his car out , so he asks a man to clean the road from h...
【单选题】X射线的发现者是
A.
伦琴
B.
克鲁克斯
C.
哥尔斯坦
D.
斯密士
【单选题】Please wait ________the office. Don’t come in until you are called
A.
in
B.
into
C.
inside
D.
outside
【简答题】根据短文内容,选择最佳答案。 (答案之间不需要空格,记得大写!) In the morning Mr Smith comes into the garden at the back of his house . He sees so much snow in the garden. Mr Smith wants to take his car out , so he asks a man to c...
【单选题】Don’t come into the lab ( ) you are asked to.
A.
unless
B.
until
C.
because
D.
since
【单选题】X射线的发现者是
A.
Purcell
B.
Bloch
C.
Roentgen
D.
豪斯菲尔德
E.
Damadian
【单选题】X射线的发现者是
A.
德国的伦琴
B.
法国的贝克勒尔
C.
法国的居里夫妇
D.
英国的汤姆孙
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