高中 解答

有一等比級數,其首項為 1,公比為 − ,若前 n 項和為 ,則 n = ? 3 243

若直線 3x − y + k = 0 與圓 ( x + 2) 2 + ( y − 3) 2 = 10 相切,則 k = ?

已知點 (−2 ,1) 及原點不在直線 mx + 2 y + 3 = 0 之同側,則滿足 m 的最小整數為何?

求指數不等式 ( ) x + x − 4 > ( ) x +1 有幾個整數解? 5 25

若多項式 3 x 3 − 2 x 2 + x − 4 = a ( x − 1)3 + b( x − 1) 2 + c ( x − 1) + d ,則 a + b + c = ?

若有向角 θ = 40 弧度,則 θ 為第幾象限角?

已知一直線斜率為 − ,且通過點 (6 , − 2) ,若其 x 截距為 a , y 截距為 b ,則 a × b = ? 3

Elderly Americans can learn from the research done by TRI that giving massages .

Babies who are born early .

Why do children with minor injuries often feel better when their mothers hug them?

This article says that touch is .

In the case mentioned in the third paragraph, the judge probably disappointed the surrogate mother because he .

The contract says .

According to the article, surrogate mothers’ medical bills are paid .

Critics say surrogate parenting .

The main idea of the article is that .

Amanda: The electricity bill this month is too high. Christina: I think so, too. But how can we reduce it? Amanda: Christina: Good idea. We should do that from now on.

Eric: Would you like to go to the movies tonight? Candy: I’d like to, . Eric: What about tomorrow night?

Sharon: A big truck crashed into a Lexus SUV last night, and four people were killed in the accident. Joyce: ? Sharon: The truck driver was dead drunk.

Mother: Marian always follows others like a sheep. Father: She needs to learn how to be an independent thinker. Mother: I know, and . Father: She will change after she goes to college, I think.

Jeremy: Do you know that a large percentage of people in Taiwan died of liver cancer last year? Tina: Do you have any idea how come this happened? Jeremy: It’s about people’s living styles and eating habits.

Kevin: A table for two, please. Waitress: (After a while.) Waitress: Can I get you some drinks now? Kevin: No, not now. We’d like to take a look at the menu first.

Clerk: Good morning, Dr. Smith’s office. May I help you? Mary: Yes, this is Mary White. Clerk: OK, when would you like to make the appointment? Mary: Is 10:00 a.m. this coming Friday OK?

Sarah: I’ll take this one, please. Clerk: Sorry, we don’t take credit cards. Sarah: Oh, I see. Can I pay by traveler’s check? Clerk: Sure. Your passport, please.