下列说法错误的一项是（     ）

根据短文内容，完成下面的任务。

Dear Grandma,

    How are you? I am very busy this month. (A)September 5th is my good friend Gina's birthday. I will go to her birthday party in the evening. On the eleventh, (B)我有一个英语测试. On September 17th, I have a baseball game. You know I love baseball. On the 24th, I have a school trip. On the 28th, I'll go to Mr. Cool's Clothes Store. The clothes there are on sale that day. I want to buy a pair of sports shoes and a T-shirt. The hats there are very nice. I will buy one ① ________ you. Oh, Grandma, I'm very sorry I can't go to see you ② ________ my parents this month. See you next month.

 Yours,

Eric

“220V 40W”的电灯L_l与“220V 60W”的电灯L₂，它们的灯丝电阻不变，分别为R₁和R₂．将它们串联后接到220V的照明电路上，消耗的功率分别为P₁和P₂；若将L_l和L₂并联后接到同一照明电路上，消耗的功率分别为P₃和P₄，则下列判断中正确的是（　　）

下列事件中，把绥靖政策推向顶峰的是（   ）