下列離子方程式正確的是（   ）

A．用惰性電極電解飽和氯化鈉溶液：2Cl^- + 2H⁺ H₂↑+ Cl₂↑

B．用銀氨溶液檢驗乙醛中的醛基：

   CH₃CHO +2Ag(NH₃)₂⁺ + 2OH^-CH₃COO^- + NH₄⁺ +3NH₃ + 2Ag↓+ H₂O

C．苯酚鈉溶液中通入少量CO₂：CO₂ + H₂O + 2C₆H₅O^- 2C₆H₅OH + 2CO₃^2-

D．Na₂SO₃溶液使酸性KMnO₄溶液褪色：5SO₃^2- + 6H⁺ + 2MnO₄^- == 5SO₄^2- + 2Mn²⁺ 3H₂O

They use computers to keep the traffic _______ smoothly. 

A. being run       B. run         C. to run        D. running

Progress______ so far very good and we are sure that the work will be finished on time.

A. was       B. had been    C. has been    D. will be

The children loved their day trip, and they enjoyed the horse ride ______.

A. most       B. more     C. less         D. little

—— Do you mind my opening the window? It’s a bit hot in here. 

    —— ______ , as a matter of fact

A. Go ahead      B. Yes, my pleasure

C. Yes, I do      D. Come on

I’m sure that your letter will get______ attention. They know you’re waiting for the reply.

 A. continued   B. immediate   C. careful   D. general

It is often ______ that human beings are naturally equipped to speak.

A. said       B. to say     C. saying     D. being said

下列詞語中加點(diǎn)的字，讀音沒有錯誤的一組是

A．肖（xiào）像   傴僂（lóu）    忐（tǎn）忑不安

B．淵藪（sǒu）    不韙（wěi）    良莠（yǒu）不齊

C．曝（bào）光    肄（sì）業(yè)     越俎代庖（páo）

D．思忖（cǔn）    吮（shǔn）吸    銳不可當(dāng)（dǎng）

下列詞語中的讀音，不完全正確的一組是

A.埋（mái）怨  腦髓（suǐ）  駢（pián）體  斂聲屏（bǐng）氣

B.處（chǔ）方  切（qiè）脈  空（kòng）白  鐘鼓饌（zhuàn）玉

C.救濟(jì)（jì）  福祉（zhǐ）  混沌（dùn）  風(fēng)塵仆（pú）仆         

D.窺（kuī）視  膚（fū）淺  諍（zhèng）友  妍媸（chī）畢露

下列詞語中加點(diǎn)的字的讀音，全都不相同的一組是

A．喇叭  辣手  竦立  毛骨悚然  不速之客    B．禪宗  邯鄲  不憚  殫精竭慮  簞食壺漿

C．繭綢  渾濁  蟄伏  風(fēng)燭殘年  風(fēng)雪不蝕    D．憧憬  瞳孔  潼關(guān)  招搖撞騙  燈影幢幢