Which of the following park is the popular areas for back country skiing and ski touring in Australia? ( ) A: Yarra Ranges National Park B: Yellow Stone Park C: Baw Baw National Park D: Alpine National Park

/ananas/latex/p/309

滚动轴承 309 的内径尺寸为（）。 A: 9 mm B: 309 mm C: 90 mm D: 45 mm

He was forbidden __________ the house, as a punishment. A: leaving B: to leave C: of leaving D: on leaving

Unitcheckoneblank-filling-1 CTL:BAW309report_______ PIL:_______maintainingBAW309 CTL:BAW309descendto______ PIL:Leaving______for______BAW309 CTL:BAW309directto______,descendto_______onQNH______ PIL:Directto______descendingto_______QNH_______BAW309 CTL:BAW309descendnowto_______QFE_______ PIL:Rogerdescendingtoheight______QFE_______BAW309

纸色谱，以BAW系统展开下列成分，Ｒf值最大的是（ ）。

纸色谱，以BAW系统展开下列成分，Ｒf值最大的是（ ）。

形态转换的事物代码和移动类型分别是（） A: MIGO/309 B: MB1B/551 C: MB1B/309 D: MIGO/551

Every year hundreds of thousands of migrant workers move to big cities, ______ their care-hungry old parents and young kids. A: leaving behind B: leaving aside C: leaving off D: leaving for

采用纸色谱以BAW系统展开下列成分，Rf值最大的是（）。