—______ delicious the beef is! Thank you for inviting me to dinner.—I'm glad you like it.
A:How
B:How a
C:What
D:What a
近年来,我国东北、华北、华东地区发生多起扬沙和沙尘暴天气,造成这一现象的重要原因之一是( )
依据下边知识卡片所列内容,判断该国家是( )
720-20=____ 4×9=____
340-300=____ 38÷7=____……____
580+210=____ 423+300=____
50÷7=____……____ 518-500=____
8×9=____ 732+200=____