如图表示向一定量CaCl2和盐酸的混合溶液中滴加Na2CO3溶液的变化过程,x表示Na2CO3溶液的质量,则y可能表示( )
A.气体的体积B.沉淀的质量
C.NaCl的质量D.混合溶液的pH
( ) --______ is it now? -- It’s 4:45. A. What time B. How C. What
( )He wants ______ to school in Canada. A. to go B. go C. going
( ) He will go home______ June 25. A. in B. for C. on
( ) Li Ming____ in China. A. live B. lives C. to live
英汉互译 ( ) (1) at the airport ( ) (2) look at ( ) (3) ten months ( ) (4) go home