Some organizations have been__________ to help the poor students in the western areas of China.
A:given up
B:set up
C:picked up
D:put up
例句:先帝创业来半/而中道崩殂,今/天下三分,益州/疲弊,此诚/危急存亡之秋也。
读“亚洲地区”图,回答下列问题:
要测量某电阻的阻值,实验桌上有下列器材:电流表A(0﹣0.6A),电压表V(0﹣3V),电源4.5V,滑动变阻器R,开关,导线,待测电阻Rx(约6Ω左右).实验要求:多测几组数据且两电表都不能超过其量程.