18 Thức ăn được đẩy từ dạ dày xuống ruột nhờ hoạt động những cơ nào sau đây? (I) Sự co bóp của cơ vòng tâm vị. (II) Sự co bóp của cơ vòng môn vị. (III) Sự co bóp của các cơ thành dạ dày. (IV). Sự nhu động của ruột non. A: (III), (IV). B: (I), (IV). C: (II), (III).

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VIII. Put these words / phrases in the night order to make sentences. 1. for /butter / breakfast / bread / and / I / to / have / like. ____________________________________________________________________________ 2 . to/ visit / how often / grandparents / come / do / your / you? ____________________________________________________________________________ 3. your / brush / you / to/ usually / teeth / you / go / do / bed / before? ____________________________________________________________________________ 4. on / there / / tonight / is / interesting / an / film. ____________________________________________________________________________ 5, two weeks / going to/ this summer / the / my family / are / for / beach. . ____________________________________________________________________________ 6. People / there / less / pollution /if / recycle / be / air / more / will / /. ____________________________________________________________________________ 7, Solar energy / save / fossil fuels / resources / instead / we / of / natural / by / can / using / ____________________________________________________________________________ 8, should / amount / your/ uses / the / you / of / family / reduce/ electricity / /. ____________________________________________________________________________ 9. brush / the dishes / off / you / or / wash / turn / when / your / the tap / teeth / /. ____________________________________________________________________________ 10. recycle / materials / save / students / they / if / energy / will / and | recycled / use / /. ____________________________________________________________________________