______ Sunday morning, Peter goes to visit the museum ______ a big garden in front.
A:On; with
B:On; has
C:In; has
D:In; with
73+20=____
61+30=____
58+40=____
由同种材料制成的两根电阻丝,已知它们的长度关系L1>L2,横截面积的关系为S1<S2,则它们的电阻R1____ R2 。(填“<”或“>”或“=”)