—It's 5:30.
A:What
B:What time
C:How much
钓鱼岛是中国的固有领土,我国海警在钓鱼岛周边海域巡航的过程中,以航船为参照物,钓鱼岛是____的,若以海警为参照物,航船是____的。(选填“运动”或“静止”)
He was very p____ with his exam results.
某定值电阻两端的电压增加1V,流过的电流就增大0.1A,该电阻的阻值为____ Ω.
函数fx=1x+2x在x=1处切线的倾斜角为( )