下图为某山坡地地质剖面图。该地潮湿多雨,岩层存在潜在滑移的风险。岩层倾斜方向与山坡同向称为顺向坡,反之则为逆向坡。若购买图中甲、乙、丙三处商品房,安全风险最大且判断依据合理的是( )
A:甲处最危险,因其位于顺向坡地
B:乙处最危险,因其位于山顶
C:甲处最危险,因其位于逆向坡地
D:丙处最危险,因其位于顺向坡地
人体内的吞噬细胞能吞噬病菌,细胞膜功能与这一现象有关的是
如图,这是美国第20届总统加菲尔德的构图,其中Rt△ADE和Rt△BEC是完全相同的,请你试用此图形验证勾股定理的正确性.
阅读下面材料,从每题所给的三个选项(A、 B和C)中,选出最佳选项,
Let's read the conversations and guess the meaning of the following expressions.
It's up to you.
A: What would you like for dinner tonight?
B: I'm not sure. What do you want?
A: It's up to you. Whatever you want, we will have.
In your dreams!
A: Guess what? This weekend, I caught a fish this big.
B: No way.
A: Yeah, it was huge!
B: In your dreams! It's impossible that you caught a fish that big.
Play it by ear.
A: Hey, what do you want to do this weekend?
B: I don't know. Maybe we can go to see a movie or have dinner. Why don't we play it by ear?
A: Sure. Let's decide as we go along.
Keep my fingers crossed.
A; Hey, How are you?
B: Hey, I am doing great. I did well in a job interview yesterday. I really hope to get the job.
A: Oh, have you heard back from them?
B: No, not yet. But I'm keeping my fingers crossed. Hopefully they'll ca11 me today.
Miss the point
A: Okay. So now do you understand?
B: I'm not sure. Can you explain it again? I think I missed the point.
A:. All right. I'll explain it one more time.