下列生活中的现象没有氧气参与的是 A．煤气燃烧 B．钢铁生锈 C．食品包装充气

甲状腺恶性肿瘤中，最多见的是（）

A.髓样癌

B.未分化癌

C.甲状腺肉瘤

D. * * 状癌

E.滤泡状腺癌

设事件A与B同时发生时，事件C必发生，则正确的结论是（）。

A．P（Ｃ）≤P（Ａ）+P（Ｂ）-1

B．P（Ｃ）≥P（Ａ）+P（Ｂ）-1

C．P（Ｃ）=P（ＡＢ）

D．P（Ｃ）=P（Ａ∪Ｂ）

Lan is 80-years-old and her health is deteriorating. Her two grandchildren have lived with her for many years since their parents died. Lan wishes to transfer her house and other belongings to the grandchildren and to authorise them to carry out banking and other transactions on her behalf. The grandchildren are aged 15 years and 19 years.Required:

(a) Explain the legal matters that Lan must consider if she wishes to transfer her assets to her grandchildren. (5 marks)

电压互感器的极性接错，如与电能表配合使用，可能会使电能表（）。

A.击穿

B.反转

C.烧坏