Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.

A．that; to eat

B．whether; to be eaten

C．whether; to eat

D．that; to be eaten

有关甲亢性心脏病，下列说法正确的是（）

A.可以发生在长期患严重甲亢的青年患者

B.多发生在老年患者

C.主要表现为心房颤动和心力衰竭

D.主要表现为室性早博

E.主要表现为心动过速