It’s ____ to play on the road. You’d better play in a ____ place.

A．safe, dangerous

B．safety, danger

C．safe, danger

D．dangerous, safe

1型糖尿病的主要特点是

A．起病缓慢
B．对胰岛素不敏感
C．有明显的遗传易感性
D．很少发生酮症酸中毒
E．胰岛素绝对缺乏