更多"A. 13 days B. 30 days C. "的相关试题:
[单项选择]A) 15 days. B) 17 days. C) 19 days. D) 21 days.
[单项选择]A. 5 days a week. B. 4 days a week. C. 3 days a week. D. 6 days a week.
[单项选择]A) Three days ago. B) Four days ago.
C) Five days ago. D) Six days ago.
[单项选择]Which days doesn’t the man’s son workWhich days doesn’t the man’s son work
A. Monday, Wednesday, and Friday
B. Saturday and Sunday
C. Tuesday, Thursday, and Sunday
[填空题]A week has seven days.
______ seven days in a week.
[填空题]A week has seven days．
______ seven days in a week。
[填空题]A week has seven days．
______ seven days in a week。
[多项选择]某公司分别以D/P at 90 days after sight和D/A at 90 days after sight两种支付条件对外出口了两批货物。这两笔业务具有以下哪些特点( )
A. 前者是进口人在到期日付清货款才可取得货运单据，后者是进口人在见票时承兑后即可取得货运单据
B. 前者没有遭进口人拒付的风险，而后者存在这种风险
C. 前者的风险比后者大。
D. 后者的风险比前者大
[单项选择]
Why is the woman busy these days
A. Because she’s writing a book.
B. Because she’s learning how to use a computer.
C. Because she’s making computer.
[单项选择]Why is the man busy these days
A. Because he will have exams next week.
B. Because he has to read books.
C. Because he failed the exam.
[单项选择] Natural Medicines
Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.
They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny (发亮的) instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured. How By ancient methods. By medicines that might seem mysterious, even magical (有魔力的). Traditional medicines are neither mysterious nor magical, however.
Through the centuries, tribal (部落的) medicine men experimented with plants. They found many useful chemicals in the plants. And scientists believe many of these traditional medicines may provide
A. Plants.
B. Factory-produced chemicals.
C. Modern medicines.
D. Strange and wonderful equipment.
