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混凝土立方体抗压强度标准值是由混凝土立方体试块测得的,以下关于龄期和保证率的表述中,正确的是( )。
A.龄期为21d,保证率为90%
B.龄期为21d,保证率为95%
C.龄期为28d,保证率为95%
D.龄期为28d,保证率为90%
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A.龄期为21d,保证率为90%
B.龄期为21d,保证率为95%
C.龄期为28d,保证率为95%
D.龄期为28d,保证率为90%
第1题
A.metaphors
B.idioms
C.proverbs
D.words
第2题
第4题
You can use Googlc to ______.
A.search synonyms and antonyms
B.define everything
C.find similar/related pages
D.All of the above.
第5题
You can use Googlc to ______.
A.search synonyms and antonyms
B.define everything
C.find similar/related pages
D.All of the above.
第6题
Prospectus(图书简介): The goal of the book Idioms(习语) is getting you to understand, speak and write everyday idioms in everyday English. The first half of this book will assume you can recognize about 2,000 words, understand the syntax(语法) of plain conversations and use the simple tenses. Therefore, either advanced or intermediate learners can use this book.
第7题
第8题
You can use Googlc to ______.
A.search synonyms and antonyms
B.define everything
C.find similar/related pages
D.All of the above.
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