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问题 单项选择题

三七横切面可见

A．油细胞
B．油室
C．树脂道
D．油管
E．乳管

答案

参考答案：C

多项选择题

In relation to the Securities Law of China:

(c) state the various legal liabilities of a sponsor, in providing professional services, for his wrong doings or failure to perform his functions. (6 marks)
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单项选择题

我国大陆最早发现饮水型地方性砷中毒的省区是

A．吉林
B．宁夏
C．山西
D．新疆
E．内蒙
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