改错题：纳税人咨询涉税事项时，工作人员应分次告知其咨询事项的时限、程序和所需的全部资料。
参考答案：
分次/一次性
Mary is tired of learning because she is _______ to do better than she can, both at school and at home. [ ]
A. thought
B. expected
C. hoped
D. helped
已知水稻体细胞中染色体数目为12对，细胞分裂后，新细胞的染色体数目为
A．24对
B．24条
C．12对
D．12条
