A:kπ+π10,kπ+3π5(k∈Z)
B:kπ-3π20,kπ+7π20(k∈Z)
C:2kπ+π10,2kπ+3π5(k∈Z)
D:kπ-2π5,kπ+π10(k∈Z)
300–150 =____ 300+105 =____ 80+120=____
315–200=____ 800–600 =____ 205+50 =____
5×2+24 =____ 16÷4+20 =____ 35 + 15-40 =____
下列叙述中,不是地图基本要素的是( )
I was tired out, so I stopped the car a short rest.