罩式退火炉内罩一般用（）制成。A.耐热纤维 B.耐热钢板 C.轻质耐火材料 D.塑料

推土机一般可开挖（）类土，运土时的最佳运距为30～60m。

根据《中华人民共和国水污染防治法》，以下说法正确的是( )。

A．禁止在饮用水水源二级保护区内新建、改建、扩建与供水设施和保护水源无关的建设项目；已建成的与供水设施和保护水源无关的建设项目，由县级以上人民政府责令拆除或者关闭

B．禁止在饮用水水源二级保护区内从事网箱养殖、旅游、游泳、垂钓或者其他可能污染饮用水水体的活动

C．禁止在饮用水水源二级保护区内新建、改建、扩建排放污染物的建设项目；已建成的排放污染物的建设项目，由县级以上人民政府责令拆除或者关闭

D．禁止在饮用水水源二级保护区内新建、扩建对水体污染严重的建设项目；改建建设项目，不得增加排污量

高炉炼铁工艺中，除高炉本体外可分为六个系统，分别是原料系统、（）、（）、渣铁处理系统、送风系统、喷吹系统及其动力系统。

If you find you spend more than you make, there are only two things to do: decrease your spending or (1) . It’s often easiest to decrease expenditures, because your expenses tend to be more (2) . There are as many ways to (3) as there are people looking to save it. For example, you may pool your resources with friends, or (4) only during sales, or even live more simply. But (5) that saving money should not necessarily be an end in itself. Don’t (6) of ways to save a dime, and don’t get upset about situations where (7) to spend money. The goal is to bring your budget into balance, not to become a tightwad who keeps (8) of every penny and feels that spending money is a (9) . It is important to remember that budgets may be (10) not only by decreasing expenditures, but also by increasing income. (11) to increase income is to get a (12) if you don’t already have one.
Many students work during college. Although working adds to the (13) you will face, it does not mean that your grades will necessarily suffer. In fact, many students who work (14) than those who don’t work, because those with jobs need to be (15) . Considering part-time work is often a better (16) for dealing with budget shortfalls, than taking out a loan. Because student loans are (17) , it’s easy to use them as a crutch. Loans can be of help (18) or if you couldn’t afford to attend a college without them. If you do (19) , remind yourself: one day soon you’ll have to (20) with interest.

男，20岁，肠梗阻3天入院。查：呼吸28次/分，血压75/60mmHg，血清钠130mmol/L，钾3mmol/L，二氧化碳结合力19mmol/L。

目前诊断中不应包括()

A．休克

B．低钠血症

C．低钾血症

D．代谢性碱中毒

E．呼吸性碱中毒