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【单选题】
萨尔浒之战时,明朝的将领是:A.
B.
杜松
C.
D.
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举一反三
【简答题】沟槽、基坑及一般土(石)方的划分: 底宽≤7m且底长>3倍底宽为 ;底长≤3倍底宽且底面积≤150m2为 ;超过上述范同的上(石)方按一般土(石)方计算。
【简答题】求下列集合的并集: (1) A ={ 3,4,6,7 }, B ={ 2,3,5,7 }; (2) A ={ x | x 3 3}, B ={ x |0< x <5}; (3) A={班内全体男生}, B={班内全体女生}.
【简答题】野燕麦是() 科。
【单选题】Narrowing excludes ________.
A.
change from material nouns to common nouns
B.
change from common nouns to proper nouns
C.
words shortened from phrases to retain the meaning of the whole for economy
D.
change from specific meanings to general meanings
【单选题】In English many nouns can be turned into verbs without any change to their form. For instance, the noun walk can be turned into the verb to walk. This phenomenon is known as ______ in morphology.
A.
compounding
B.
derivation
C.
conversion
D.
inflection
【简答题】求下列集合的并集 (1)A={班内全体女生},B={班内全体男生} (2)A={x|x≤1},B={x|x≥-4}
【简答题】求下列集合的并集: (1)A={x|x 3 3}, B={x|x<-3} ;(2)A={x|x 3 3}, B={x|0
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