问题 计算题 脱计计算下面各题。(1)1960+480÷6(2)25×18-402(3)540÷9+3100(4)350÷5+407 答案 (1)原式=1960+80 =2040(2)原式= 450-402 = 48(3)原式=60+3100 =3160(4)原式=70+407 = 477 选择题 — ______ you have four comic books? — No,_________. [ ]A. Do, we don't B. Does, we don'tC. Do, we doD. Are, we aren't 查看答案 单项选择题 卵巢肿瘤最常见的并发症是A.感染B.恶变C.蒂扭转D.自发性破裂E.外伤性破裂 查看答案