土壤微生物中,数量最多的是()。A.真菌 B.放线菌 C.细菌 D.藻类

题型:单项选择题

问题:

土壤微生物中,数量最多的是()。

A.真菌

B.放线菌

C.细菌

D.藻类

考点:农学土壤肥料学土壤肥料学题库
题型:单项选择题

As prices and building costs keep rising, the “do-it-yourself” (DIY) trend (趋势) in the U.S. continues to grow.

“We needed furniture(家具) for our living room.” Says John Ross, “and we just didn’t have enough money to afford it. So we decided to try making a few tables and chairs.” John got married six months ago, and like many young people these days, they are struggling to make a home at a time when the cost of living is very high. The Rosses took a 2-week course for $ 280 at a night school. Now they build all their furniture and make repairs around the house.

Jim Hatfield has three boys and his wife died. He has a full-time job at home as well as in a shoe making factory. Last month, he received a car repair bill for $ 420. “I was deeply upset about it. Now I’ve finished a car repair course, I should be able to fix the car by myself.”

John and Jim are not unusual people. Most families in the country are doing everything they can to save money so they can fight the high cost of living. If you want to become a “do-it-yourself”, you can go to DIY classes. And for those who don’t have time to take a course, there are books that tell you how you can do things yourself.

小题1:We can learn from the text that many newly married people _______.

A.find it hard to pay for what they need

B.have to learn to make their own furniture.

C.take DIY courses run by the government.

D.seldom go to a department store to buy things小题2:John and his wife went to evening classes to learn how to _____

A.run a DIY shop

B.make or repair things

C.save time and money

D.improve the quality of life.小题3: When the writer says Jim has a full-time job at home, he means Jim ____

A.makes shoes in his home

B.does extra work at night

C.does his own car and home repairs

D.keeps house and looks after his children

题型:单项选择题

如图所示,杠杆AB可绕O转动,绳AD连在以A为圆心的弧形槽MN上,D可以在MN上自由滑动,在绳的D端从N向M滑动过程中杠杆仍保持平衡,则绳对杠杆的拉力变化情况是(  )

A.变大

B.变小

C.先变大,后变小

D.先变小,后变大

题型:单项选择题

「私は三年前に北京大学から卒業しました。」的意思是「我三年前从北京大学毕业」。

题型:单项选择题

物流网络中的节点是指()。

A.数据库

B.仓库

C.车辆

D.物流公司

题型:单项选择题

委员会制

更多题库