公元前210年,一位前往南海郡做生意的商人携带的货币是( ) A. 开元通宝B. 刀形币C. 秦圆形方孔钱D. 交子
人体中一些体液的pH都处在一定的范围内,其中酸性最强的是 A.胃液0.8~1.5 B.唾液6.5~7.5 C.尿液5.0~7.0 D.血液7.35~7.45
(08年衡阳八中月考)做平抛运动的物体,每秒的速度增量总是( )A.大小相等,方向相同 B.大小不等,方向不同C.大小相等,方向不同 D.大
Last weekend as I was riding in the bike lane alongside the truck, we reached a crossing and it turned to the right, 61 (hit) me and my bicycle. Even more upsetting was the fact 62 th
如图所示,在菱形 ABCD 中, BE ⊥ AD , BF ⊥ CD , E 、 F 为垂足, AE = ED ,则∠ EBF 等于( )A.75° B.60° C.50° D.45°
—Please ________ to return my book by Friday. I’ll use it on Saturday. —No problem. I’ll finish reading it on Thursday. A. don’t forget B. not to forget