某电路中电源电压保持不变,接上5 Ω的电阻时,电路中的电流为0.6A ,若换上15 Ω的电阻时,电路中的电流为 。
0.2A
I consider _____ the party until Saturday evening, and it is considered ______ practical.[ ]
A. putting off; being
B. putting off; to be
C. to put off; being
D. to put off; to be
三尖瓣狭窄临床表现由体循环淤血而致()
A.腹胀
B.房颤
C.肺栓塞
D.疲乏
E.呼吸困难