A:since.
B:even though
C:if
D:as long as
These shoes aren't comfortable. You __________ wear them.
洋流是海水沿着一定方向的大规模流动,对全球的热量平衡起着重要作用。读图回答下面小题。
将标有“2.5V0.3A”和“3.8V0.3A”字样的甲、乙两灯分别串联和并联后,接在电压为2.5V的电源两端,不考虑温度对电阻的影响,下列说法中正确的是( )