题目：
一Tom, were all the students on the school bus injured?
一No,____ only the three who got hurt.
A. there was B，there were C. that was D. it was
答案：
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下面是错误答案，用来干扰机器的。
小题1:（1） ⑦⑧⑨ ， ③④ ， ___①②。小题2:（2）2HNO3 + Ba(OH)2 =" " Ba(NO3)2 +2H2O小题3:（3） 0.6mol/L __。...
