(____) 1. A.coat B.dress C. two
(____) 2. A. are B. is C. he
(____) 3. A.big B. party C. long
(____) 4. A.whose B.what C. they
(____) 5. A.trousers B. skirt C. gloves
已知1.505×1023个X气体分子的质量为8g,则X气体的摩尔质量是( )
根据人的性别遗传图谱(如图),回答下列问题:
读拼音,写句子。
wǒ men shì zǔ guó de huā duǒ
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