有一换热器,热流进口为100℃,出口为60℃,冷流进口为40℃,出口为50℃,则逆流时的△tm为()℃。
A、30.5
B、32.7
C、20.3
D、27.6
参考答案:B
根据句意及汉语提示,写出各单词的正确形式,每空填一词。
1. — How many rooms are there in this building?
— There are ________ (九十 ).
2. Look! Trie things are all over the ________ (地板). Your room is in 4 mess.
3. "Why didn't you tell me earlier?" the boss shouted _______ (生气).
4. Mary was too ________ (紧张) to describe the accident clearly.
5. The documentary was filmed in India ________ (在......之间) 2004 and 2006.
( )负责医疗卫生机构中与实施药品不良反应报告制度有关的管理工作
A.国家食品药品监督管理局B.各级卫生主管部门C.省级(食品)药品监督管理局D.药品生产企业、药品经营企业、医疗卫生机构E.国家