By the end of last term, we ________ 1,000 English words.
A.
have learned
B.
has learned
C.
had learned
D.
learned
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】A 26-year-old woman in her first trimester of pregnancy (week 9) is experiencing severe nausea and vomiting that is interfering with her ability to maintain an acceptable level of nutrition. Which one...
A.
Methylprednisolone 12 mg orally twice daily as needed
B.
Droperidol 0.625 mg orally every 12 hours as needed
C.
Doxylamine 10 mg/pyridoxine 10mg, two tablets at bedtime
【单选题】Walt considers x and y to be perfect substitutes. They originally cost 10 and 9 respectively. His income is 720. One day the price of x drops to 8. Which of the following is true?
A.
The income effect increases the quantity of y by 90.
B.
The substitution effect increases the quantity of y by 80.
C.
The substitution effect increases the quantity of x by 90.
D.
The income effect increases the quantity of x by 80.
【单选题】Questions 9 and 10 are linked. 9. Many chronic alcoholics develop thiamin deficiency because of a poor diet and an inability to absorb thiamin from the intestine in the presence of ethanol. Which one ...