绘图题：有四个12V车用蓄电池，请绘出24V的用电连接线路简图。
参考答案：
The most delicious bread in the world ______ by Mom. Please wait an hour to enjoy it. [ ]
A. bakes
B. is baked
C. is baking
D. is being baked
大出血病人从出血量估计蛋白质丢失量，如失血100mL相当于丢失氮（）。
A.3g
B.30g
C.125g
D.200g
E.400g
