根据课文内容填空。(1) ,随风直到夜郎西。(《闻王昌龄左迁龙标遥有此寄》)(2) 知之者不如好之者,
磁场中放一根与磁场方向垂直的通电导线,它的电流是2.5 A,导线长1 cm,它受到的安培力为5×10-2 N.问: (1)这个位置的磁感应强度是多大?(2)如果把通电
Chuck Swindoll once said, “life is 10% happens to us and 90% we respond to it.” A.who; why B.what; how C.which;
In the weeks before the Academy Awards Ceremony, movie reviewers make predictions about which movies and actors _____. A. have awarded B. will award C. are awarded D. will
—Shall we call for a taxi? —OK. Let me _______ the phone number in Yellow Pages. A. look at B. look for C. look up D. look after.
在现实经济生活中,人们的消费行为受到众多因素的影响,其中主要的是( ) A.商品的性能、质量和价格的影响 B.商
珠江三角洲外资的主要来源地是 A.港澳地区 B.欧洲 C.美国 D.台湾
若△ABC的三边长为a,b,c,且则f(x)的图象( )(A)在x轴的上方 (B)在x轴的下方(C)与x轴相切