鎬庝箞鍋氬叧浜庤酱瀵圭О鍙樻崲杩欓亾棰楛br/>濡傚浘,C銆丏銆丒銆丗鏄?竴涓?暱鏂瑰舰鍙扮悆妗岀殑4涓?《鐐?A銆丅
鎬庝箞鍋氬叧浜庤酱瀵圭О鍙樻崲杩欓亾棰楛br/>濡傚浘,C銆丏銆丒銆丗鏄?竴涓?暱鏂瑰舰鍙扮悆妗岀殑4涓?《鐐?A銆丅
结构命名Br/Br-C-H/Br
鍒濅竴鏁板?鍟婂晩鍟婂晩鍟婂晩鍟婂晩鍟婂晩鍟婂晩鍟夵br/>宸茬煡,濡傚浘7鎵€绀?鍦ㄢ柍ABC涓?AD鈯?C浜嶥,AE
That fellow is clever;he has ____.A.brain B.a brain C.the br
1.After( ),I go to school.A.breakfast B.the breakfast C.a br
Let us go out for a ( ) of fresh air.A.breath B.breaths C.br
There isn't ____ on the table.A.some bread B.any food C.a br
鍒濅簩鍕捐偂瀹氱悊鎶樺彔棰楛br/>濡傚浘,闀挎柟褰?BCD涓?AB=4,BC=3,灏嗗叾娌跨洿绾縈N鎶樺彔,
4、下列各组微粒中,半径大小的排列顺序错误的是 ( ) A、K+ >Ca2+ >S2- B、I>Br>Cl C、K>Mg
某溶液PH=4,并含有较多的FE2+ CU2+,那么溶液中不可能含有的阴离子是A:cl- B: SO42- C: BR-
①Those are two_____.A.girl B.girls C.sister D.br
发音不同的单词 1.A.br(ea)d B.m(ea)t C.t(ea)