For our middle school students, some courses are compulsory, while others are ________.
A．flexibleB．optionalC．impressiveD．significant
B
詞義辨析。A. 靈活的；柔韌的 B. 可選擇的；隨意的 C.感人的            D. 有效地；有意義的。句意：對于我們中學(xué)生，有些課程是強(qiáng)制性的，然而其它的是可選擇的。故選B。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

---What do you think of my article, professor?
---The former part is well written but _____ is just so so.
A．the laterB．the last partC．latestD．the latter

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Finally, the two brothers climbed up the last floor, ________.
A．hungrily and tiredB．hungrily and tiredlyC．hungry and tiredD．hungry and tiredly

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

My car’s performance is ___ since the engine’s been tuned and the tires have been changed．
A．better as twiceB．twice as the condition
C．twice as goodD．twice as better

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

She is not very ____ about the idea of going camping. I think she will stay at home reading.
A．optimisticB．enthusiasticC．confusedD．curious

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The paper studies some        cases in which something somehow wrong leads to the miscommunication,so that English teachers may improve their teaching.
A．distantB．typicalC．exoticD．misleading

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The police failed to come up with ______ evidence, and on that account the suspect was released.
A．effectiveB．validC．subtleD．considerate

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Glasses are       __and must be handled with great care.
A．a(chǎn)bundantB．diverseC．extinctD．fragile

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

He’s perfectly      to live in the mountain and paint pictures all day, though he is badly off.
A．curiousB．proudC．a(chǎn)nxiousD．content

查看答案和解析>>

同步練習(xí)冊答案