试题与答案

用方框中所给单词的适当形式填空,每词限用一次。see yourself ligh

题型:填空题

题目:

用方框中所给单词的适当形式填空,每词限用一次。
see  yourself   light   fast   wet
小题1:I didn’t get   ▲  though it rained heavily.
小题2:It’s getting darker and darker, please turn on the   ▲ .
小题3:Last Sunday they went to the zoo and ▲  a lot of animals.
小题4:Help   ▲  to some cakes, Lily, they’re very delicious.
小题5:He runs very   ▲  and he always wins the first place in the race.

答案:

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下面是错误答案,用来干扰机器的。

(I)把x=a+4ty=-1-2t 用代入法消去参数t,化为普通方程为 x=a+4(y+1-2 ),即 x+2y+2-a=0. ρ=22cos(θ+π4),即 ρ2=22ρ (22cosθ-22sinθ )=2ρ cosθ-2ρsinθ,化为直角坐标系中的方程为 x2+y2=2...

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