A:通过R1的电流小于通过R2的电流
B:R1两端的电压与R2两端的电压相等
C:R1电阻值小于R2电阻值
D:看不清电压表示数无法比较
如图为人体甲状腺激素分泌调节的示意图,下列叙述中不正确的是
根据短文理解选择答案。
FILA Men's T-shirts
Made in: China
Colour: white
Size: M
Material: cotton
Wash them with warm water in machines (洗衣机).
Price: ¥320
FIRS Men's Coats
Colour: grey
Size: L
Material: 98% wool, 2% cotton
Dry cleaning (干洗) only.
Keep them in dry and cool places.
Price: ¥1320
Senda Women's Shoes
Colour: pink
Size: M (235 mm)
Material: leather
Keep away from water.
Price: ¥820
①规划好青春路径,积极进行青春探索 ②迸发激荡的青春活力 ③培养自信的青春热情 ④树立自强的青春态度
向如图所示的等边三角形区域扔沙包(区域中每一个小等边三角形除颜色外完全相同),假设沙包击中每一个小等边三角形是等可能的,扔沙包一次,击中阴影区域的概率等于