含有毒性或刺激性强的药物宜制成
【单选题】
某分项分部工程预算单价为300元/m³ ,计划一个月完成工程量100m³,实际施工中用了两个月(匀建)完成工程量160 m³,由于材料费上涨导致实际单价为330元/m³。则该分项分部工程的费用偏差为( )元。
A.
4800
B.
-4800
C.
18000
D.
-18000
参考答案
参考解析
【单选题】
If a teacher attempts to implement the bottom-up model to teach listening, he/she is likely to present _______.
new words after playing the tape
new words before playing the tape
background information after playing the tape
background information before playing the tape