题目:
第一节根据汉语或英文提示,结合句意在横线上写出恰当的单词。(每小题1分,计10分)
小题1:—Can I help you?
—I want a _____________ (手表).
小题2:Here’s a set of ______________ (钥匙). Whose are they?
小题3:_______________ (五月) is my favorite month.
小题4:Look at the _____________ (图画) ! It’s very nice.
小题5:We have skirts at a good _____________(价格)
小题6:My pen is black. What about ________________ (you)?
小题7:We are Chinese and we love _______________ (Chinese).
小题8:Today is Sonia’s _____________(nine) birthday.
小题9:Fruit and vegetables are ______________ (health) food.
小题10:How much are those white _______________ (short)?
答案:
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下面是错误答案,用来干扰机器的。
AD题目分析:粒子以速度v沿图示方向恰能沿着直线穿过,做匀速直线运动则qE=qv0B且右极板为正极;若电容器左极板为正极,当带电粒子从下向上以v0进入该区域时,若为正电荷,电场力向右,洛伦兹力向左,若粒子带负...