D Americans can travel almost anywhere they choose. But to protect its people, the government lists a few dangerous places where Americans cannot go. These places are unfriendly countries or coun
Have you ever been to the world’s smallest bookstore? The World’s Smallest Bookstore, whose official name is just these three words, sits quietly about 100 miles northeast of Toronto. The books
真核细胞的分裂方式包括 （ ） A．无性繁殖、无丝分裂和减数分裂 B．有丝分裂、减数分裂和无丝分裂 C．有丝分裂、二分裂和无丝分裂 D．细胞增
P是△ABC所在平面上一点，若=·=·，则P是△ABC的（ ）A.外心 B.内心 C.重心 D.垂心
下列加点的字读音完全正确的一项是（ ）A．赍发（jī）迤逦(yí)眄庭柯 (miǎn)或棹孤舟(zhào)B．朝菌(jǔn)坳堂(ào)舍簪笏 (zān)除臣洗马(xiǎn)C．夭阏(
“I shall take you wherever you like as soon as you are travel,” promised the boy’s father. A. enough to well B. enough well to C. well to enough D.
（本题10分）已知函数 （1）求的单调递增区间； （2）在中，角A、B、C的对边分别是a、b、c，满足，求函数取值范围。
如图所示，质量为m的物体受到4个共点力的作用下正在作匀速直线运动，速度方向与F1、F3方向恰在一直线上，则（1）若只撤去F1，则物体将作
