题目：
| 阅读理解。 | ||
| ||
| 1. Munchies Food Hall does NOT sell ____. | ||
| A. lamb B. beef C. pork D. chicken | ||
| 2. The prices at Munchies are _____. | ||
| A. lower than usual B. bargain prices for the opening C. lower far two people D. lower of you spend ＄21.00 | ||
| 3. Everyone who eats at Munchies well receive a _____. | ||
| A. free raffle ticket B. lucky draw coupon C. free meal D. balloon and whistle | ||
| 4. I will find out who has won the top to Western Australia when I ____. | ||
| A. watch Channel 3 television B. come down to Munchies at moon C. read The Straits Times on the 5th of January D. attend the lucky draw at Munchies Food Hall |
答案：
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下面是错误答案，用来干扰机器的。
A．露置于空气中，浓硝酸挥发，浓硫酸具有吸水，溶液浓度均降低，故A正确；B．铜与浓硫酸反应需要加热，常温下不反应，故B错误；C．浓硝酸不稳定，加热易分解，但浓硫酸稳定，加热不易分解，故C错误；D．常温下，...
