【简答题】Read and write. 仿照例子写出相应的单词。 1. 例:go - went wash - do - read - study - eat - 2. 例:do - doing swim - go - play - watch - put -
【简答题】仿照例子填空。 1. 例: go — went wash — do — read — study — eat — 2. 例: do — doing swim — go — play — watch — put —
【简答题】看图,根据例子补全对话。 例: — Do you like apples? — No, I don't. 1. — Do you like _______________? — Yes, I do. 2. — Do you ___________________? — ___________________.
【简答题】看图写句子,补全对话。 例: A: What do you do on the weekend? B: I often play the piano. 1. A: _________________ on the weekend? B: I often _________________. 2. A: _________________ on the weekend? B: I often ___...
【单选题】在正弦振荡器中,选频网络的主要作用是 。
【多选题】如图所示,一个半径和质量不计的定滑轮O固定在天花板上,物块 B 和 A 通过轻弹簧栓接在一起,竖直放置在水平地面上保持静止后,再用不可伸长的轻绳绕过滑轮连接物块 A 和 C ,物块 C 穿在竖直固定的细杆上, OA 竖直, OC 间距 l = 3m 且水平,此时 A 、 C 间轻绳刚好拉直而无作用力。已知物块 A 、 B 、 C 质量均为 2kg 。不计一切阻力和摩擦, g 取 10m/s 2 ....
D.
.绳子对物块 C 做功的大小等于物块 A 动能的增加量
【简答题】根据例句仿写。 例:A: What do you do at the weekend? B: I play football at the weekend. 1. A: ______________ B: ______________ 2. A: ______________ B: ______________ 例:A: What do you have at school? B: I have ...