下列跨膜运输的生理活动，属于主动运输的是
| A．酒精进入胃黏膜细胞 | B．二氧化碳由静脉血进入肺泡内 |
| C．原尿中的葡萄糖进入肾小管上皮细胞 | D．水分子出入细胞 |
Tom insisted that the boy _______ seriously ill and that the boy _______ to the hospital at once.
| A．be; should be sent | B．be; was sent |
| C．was; be sent | D．was; was sent |
Mr. Richard would not come for supper because he was in the research of bird language.
| A．shocked | B．cared |
| C．buried | D．spared |
Anyway, I can’t cheat him－it’s against all my________.
| A．concerns | B．principles |
| C．purposes | D．signs |
It's doing the things you likemakes life happy.
| A．which | B．that |
| C．so | D．and |
Only when you can find peace in your heartgood relationship with others.
| A．will you keep | B．you will keep |
| C．you kept | D．did you keep |