题目:
单词拼写
小题1:I remember you mentioned the same thing on a _____ occasion. (先前)
小题2:The young man worked with us for nearly a year and made an excellent _____ upon us. (印象)
小题3:Our headmaster has been ______ the construction of our school. (处理)
小题4:The only ____ of illness that Bill has is a pain in his stomach. (症状)
小题5:We are very_____ about the relationship between China and Japan. (乐观)
小题6:Can you telephone me at your ____ to arrange a meeting?(方便)
小题7:____ in her work, she didn’t notice a thief slide in. (专心于)
小题8:The role will be one of the biggest _____ of his acting career. (挑战)
小题9: It is just a _____ job and I can leave anytime. (临时)
小题10:From these facts we can draw some _____ about how the pyramids were built.(结论)
答案:
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答案:D题目分析:①从图可知,定值电阻R1和滑动变阻器串联R2串联,当滑片P向右移动时,其连入电路中电阻的变大,则根据串联电路电阻的特点可知,此时电路中的总电阻的变大,而电源电压不变,由公式可知电路中的...