影响焦炉煤气的成分、热值的因素有哪些？
参考答案：
①配煤的质量。②炉顶空间大小和温度。③装煤操作和结焦时间。
小题1: We need to d________ when we should start the project.
小题2:—I’m sorry to bring you so much ________ (麻烦). —It doesn’t matter.
小题3: There are many ________ (乘客) on this bus. Let’s wait for the next one.
小题4: Who can________ ________ (解出) this maths problem?
小题5:. He realized that his deskmate was ________ ________ ________ (看不见了).
患儿心跳停止的常用急救处理措施是（）挤压法。
