题目

Thing to know before you go out in the coldKeep your _______ warm There is a saying, If your hands and feet get cold, put on hat. A hat made of wool will keep you warm even if it gets wet. The hood (兜帽) is great for blocking the wind as long as you wear a hat underneath. Drink up In the summer, when you feel thirsty, you need to drink water. This isn't always the case in winter. When you're wearing heavy winter clothes, you have to work harder to build up a tent, cook dinner or _______ the woods. Your body will lose a lot of water. So drink up. Sleeping _______ Sleeping bags are rated (评6．AlPO4的沉淀溶解平衡曲线如图所示（T2＞T1）．下列说法正确的是（　　）A．图象中四个点的Ksp：a=b＞c＞dB．AlPO4在b点对应的溶解度大于c点C．AlPO4（s）?Al3+（aq）+PO43-（aq）△H＜0D．升高温度可使d点移动到b点