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【单选题】
提高混凝土强度可采取下列哪些措施( )。A.
减水剂
B.
早强剂
C.
缓凝剂
D.
速凝剂
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反馈参考答案：
举一反三
【单选题】Why does the speaker say the worst way to complain is over the telephone?
A.
Your problem may not be understood correctly.
B.
You don't know if you are complaining at the right time.
C.
Your complaint may not reach the person in charge.
D.
You can't tell how the person on the line is reacting.
【简答题】酮体是指()、()和()的总称。
【单选题】31
A.
You problem may not be understood correctly.
B.
You don't know if you are complaining at the right time.
C.
Your complaint may not reach the person in charge.
D.
You can't tell how the person on the line is reacting.
【单选题】Q21
A.
Your problem may not be understood correctly.
B.
You don't know if you are complaining at the right time.
C.
Your complaint may not reach the person in charge.
D.
You can't tell how the person on the line is reacting.
【单选题】有关酮体的描述正确的是
A.
糖尿病都会出现酮体升高
B.
酮体是指草酰乙酸和b－羟丁酸
C.
它们由肝脏合成
D.
正常时乙酰乙酸比b－羟丁酸浓度高
E.
尿酮与血酮的相关性很好
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