下列分保方式中主要适用于火险和水险比例分保的分保方式是（）。
A.临时再保险
B.超额赔款再保险
C.预约再保险
D.赔付率超赔再保险
参考答案：C
盐酸美沙酮
A．双氯芬酸钠B．哌替啶C．美沙酮D．异丙肾上腺素E．右丙氧芬
23. You were late again this morning! You ______ have been here earlier. We were about to start without you.
A．should
B．can
C．must
D．Will
