[单项选择]There aren't many problems for me to______.


A. care about
B. care for
C. take care for

[单项选择]There aren't many problems for me to______.


A. care about
B. care for
C. take care for

[单项选择]

Passage 5
Geniuses took at problems in many different ways. Genius often comes from finding a new perspective that no one else has taken, Leonardo da Vinci believed that, to gain knowledge about the form of a problem, you begin by learning how to restructure it in many different ways. He felt that the first way he looked at a problem was too biased toward his usual way of seeing things. He would restructure his problem by looking at it from one perspective and move to another perspective and still another. With each move, his understanding would deepen and he would begin to understand the essence of the problem.
Geniuses make their thought Visible. The explosion of creativity in the Renaissance was intimately tied to the recording and conveying of vast knowledge in drawings, graphs, and diagrams, as in the renowned diagrams of da Vinci and Galileo. Galileo revolutionized science by making his thought graphically visible while his contemporaries used only co
A. were often used to aid scientific researches
B. served as sources of fresh ideas for some scientists
C. could provide scientists with an immense quantity of knowledge
D. were necessary for the expression of creative ideas

[单项选择]The instructor had gone (over) the problems (many times) (before) the students (will take) the final examination.


A. over
B. many times
C. before
D. will take

[单项选择]Many of human problems associated with living in the ocean are（） the problems of living in outer space.
A. the same as
B. such that
C. such as
D. just as

[单项选择]There aren't many pandas ______ in the world today.
A. alive
B. living
C. lively
D. lived

[单项选择]We had so many problems with the car that ______ the end we sold it and bought a new one.


A. by
B. at
C. in

[单项选择]How many problems have remained unsolved


A. 4.
B. 14.
C. 18.
D. 25.

[单项选择]One of the technological problems that will have to be solved in developing the new system is ___________.
A. how to make enough ice underground
B. how to install the whole device underground
C. how to design the proper heat exchanger pipes for the system
D. how to make the tank so as to keep the temperature

[单项选择]Many political problems are so complicated that the layman cannot see the wood （）. the trees.
A. of
B. from
C. for
D. with

[单项选择]Many of the human problems associated with living in the ocean are （） the problems of living in outer space.
A. just as
B. such as
C. such that
D. the same as