问题
单项选择题
除去混在Na2CO3粉末中的少量NaHCO3最合理的方法是（）。
A、加热；
B、加NaOH溶液；
C、加盐酸；
D、加CaCI2溶液。
答案
参考答案：A
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除去混在Na2CO3粉末中的少量NaHCO3最合理的方法是（）。
A、加热；
B、加NaOH溶液；
C、加盐酸；
D、加CaCI2溶液。
参考答案：A
完型填空（每题1分，满分15分） Let me tell you something ___41__ my little dog, Snoopy. Snoopy is a healthy 42 dog. He looks very __43 . He has two small eyes, two big ears, __44__ short legs and a small tail. It’s great fun 45 with him. I often teach him __46 __ to play games. Now he can play many kinds of 47 . If I say “Go to __ 48 _ !” he goes to his bed and lies 49 .If I say “__50 __ basketball!” he goes to catch a ball and puts it into a __51__ . If I say “Please __52_ _ for us!” he dances to the music. Can he sing a song? Of course he can. But he does not __ 53_ in English or Chinese. When he sings, __54_ can understand 55 .
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