题海网，海量题库；找题库、找试卷、找答案就上题海网。

两个真分数的乘积，一定大于其中的某一个真分数．

①更令人心旷神怡的是，我听到了潺潺流水之声。

②寻声而去，一条山泉形成的小溪，流淌在我的脚边。

③一阵秋风刮过，有的树叶离开了母体，落到溪流之中，顺水漂泊而下。

④静坐溪水边，亮晶晶的清波中，有五光十色的花石子，横七竖八地躺在小溪流中。

⑤小心翼翼走了一段山路之后，首先看到了万绿丛中的红艳，那是枫叶在深秋绽露出它的身姿。

⑥沿着溪边的崎岖小路，继续向山的腹地进发时才发现，刚才所见的红色之中，不仅仅有炫目的红枫，还有一片片的山楂树。

漫漫旧州古道，踏足其上，用脚步丈量着历史，在过往的印记中感喟着旧日时光的深沉、厚重。古道一头连接着过去，一头通向着未来，未来不可知，过去却可寻。沿着悠远古道，历史的车轮卷着烟尘滚滚而来，几多家国陈事掺杂着悲欢离合或湮没幻灭，从此______，或演绎传唱于街头巷陌，妇孺皆知，______成为不朽的传奇。

蓦然回首，在旧州浩繁的传奇篇章中，不知多少英雄豪杰纷至沓来，又______离去，惟有林冲在文人的翰墨里、在评书艺人的精彩评说中、在乡老的口耳闲谈中，熠熠生辉又慷慨悲歌，如一座不朽丰碑高高地矗立在人们的心田。故事里的事说是也不是，说不是也是，一切皆在信与不信间，但沧州人是信的。

正因如此，林教头刺配沧州道至雪夜上梁山的精彩段落画面方能在施耐庵的笔下被永久地______在旧州风雪古道旁。（     ），一个让英雄绝境逢生——斩断旧我、从此走向新我的地方。

亮亮设计了一个用电压表示数变化反映环境温度变化的电路，其电路原理图如图（a）所示，其中，电源两端电压U=4V（恒定不变）．电压表量程为0～3V，R₀是定值电阻，R₀=300Ω，R₁是热敏电阻，其电阻随环境温度变化的关系如图（b）所示．闭合开关S后．求：

①当环境温度为40℃时，热敏电阻R₁的阻值是多少？

②当环境温度为40℃时，电压表的示数是多少？

③电压表两端电压不能超过其最大测量值，则此电路所允许的最高环境温度是多少？

Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents' home in Missouri to spend Christmas with them. I stopped halfway at a 1to refill my tank. While I was standing in line at the cash register (收款台), I said hello to an old couple who were also 2 gas.

I started my car, but had gone only a few miles when black smoke 3from the back of my car. I stopped and4what I should do. A car slowed down behind me. It was the couple I had spoken to at the gas station. They said they 5 take me to my parents' home. We chatted on the way into the city. Before leaving, I asked the husband 6their address and he gave me his business card.

Before Christmas, I wrote to the couple asking if I could thank them 7 . Soon, I received a Christmas present with a note from them. They 8refused my request. They just said helping me had made their holiday 9.

Years later, after finishing a one-day meeting in New York, I returned to my car, only to find that I'd left the lights 10all day, and the battery (电池) was dead. Then I noticed that the Friendly Ford Dealership —— a shop11 cars —— was right next door. I walked over and found two salesmen in the showroom.

"Just how friendly is Friendly Ford?" I asked and told them about my12. They quickly drove a pickup truck to my car and started it. They would accept no pay, 13 I wrote them a note to say thanks after returning home. Soon, I got a letter from one of them. 14had ever taken the time to write to him to say “thank you”, he said, and they were two 15words but meant so much.

“P+R” （Park and Ride )意思为“停车换乘”，通过兴建“P+R”停车场，将私家车和公共交通系统接驳。下图为我国某大城市“P+R”交通模式示意图，关于该交通模式的有利影响，不包括（   ）