A:even though
B:as if
C:so that
D:now that
电流表内阻Rg=3kΩ,满偏电流Ig=100μA,要把这个电流表改装成量程为3V的电压表,应在电流表上____联(填:并或串联)一个电阻R1=____KΩ的分压电阻.
The shopkeeper did not want to sell for he thought was not enough.
命题p:∀x∈R,cosx>sinx﹣1的否定为____.