题目

若已知物体的速度方向和它所受合力的方向，如图所示，可能的运动轨迹是  答案：B解析: 请阅读下面各小题，从方框中选择适当的短语填空，并将其序号填写到答题卷的相应位置。每个词语限用一次。A. With the help ofB. complain aboutC. a good experienceD. provided…withE. pick…upF. later onG. anybody elseH. all the timeI. in whiteJ. woke up小题1:Lucy volunteers at a school. It’s ________for her because she wants to be a teacher.小题2:—Let’s keep the secret between us .—I won’t tell it to _________ .小题3:________ the policeman, the Blacks finally found their lost cat on the street . 小题4:—Who is that man ________ ?—He is the world champion we talked about just now .小题5:Some old people have nothing better to do than to ________their unhappiness .小题6:—I __________several times during the night .—What’s wrong  with you ?小题7:—My company _______me _________a car .—Oh , you’re a lucky dog .小题8:—I dropped my book on the floor . Could you please help me ________ it ________?—Wait a minute .小题9:—How cold the weather is today !—Yes , and it’ll be even colder _________ .（小题10:Children can’t depend on their parents __________ .