适宜于高炉冶炼的矿石必须是：（），脉石少，有害杂质少，化学成分稳定，粒度均匀，并且有良好的还原性及一定机械强度等。
参考答案：含铁量高
The nurse in the emergency department is assessing a 64-year-old client experiencing substernal chest pain. The client’s electrocardiogram shows evidence of myocardial ischemi
a. Which statement should indicate to the nurse that the client may be a candidate for thrombolytic therapyA. "I have had chest pain for 2 days. "B. "My chest pain started 3 hours ago. "C. "My chest pain stops when I take a nitroglycerin pill. "D. "I have had chest pain on and off all week. "
—I like playing sports. Let's play _____.
—It sounds _____. [ ]
A. the ping-pong; good
B. ping-pong; well
C. ping-pong; good
D. the ping-pong; well
