- Can you tell me ________?
- His home is quite far from the office, I think.
A:where he works
B:why he bought the car
C:when he got up
D:how he likes his job
读下列图文资料,回答问题.
材料一:中国的自然资源种类多、总量大,一向有“地大物博”之说.
材料二:我国土地利用类型示图.
已知△ABC是半径为5的圆O的内接三角形,且 tanA=43,若AO→ =xAB→+yAC→,则x+y的最大值为( )