为了评价发动机进、排气过程与理论循环的差异,引入的参数是()
A.泵气损失
B.传热损失
C.流动损失
D.换气损失
参考答案:D
根据句意用所给单词的适当形式填空
1. The poor dog looked cold and __________ (frighten).
2. You can go to Kate. She is willing __________ (help) you.
3. There're many places of __________ (interesting) in our home town.
4. You can see two __________ (baby) in the photo.
5. _________ (lucky), he didn't hurt himself.
6. The girl is preparing _________ (go) horse riding.
7. Liu Xiang was the fastest _____(run) in 110-metre hurdle race in Guangzhou Asian Games.
8. Kitty wants to be an editor when she __________ (grow) up.
新生儿小肠上皮细胞通过消耗ATP,可以直接吸收母乳中的免疫球蛋白和半乳糖。这两种物质分别被吸收到血液中的方式是()
A.主动运输、主动运输
B.胞吞、主动运输
C.主动运输、胞吞
D.被动运输、主动运输