Question 46: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions: Scientists have developed a new bionic computer chip that can be mated with human cells to combat disease. The tiny device, smaller and thinner than a strand of hair, combines a healthy human cell with an electronic circuitry chip. Doctors can control the activity of the cell by controlling the chip with a computer. It has long been established that cell members become permeable when exposed to electrical impulses. Researchers have conducted genetic research for years with a trial-and-error process of bombarding cells with electricity in an attempt to introduce foreign such as new drug treatments or genetic material. They were unable to apply a particular level of voltage for a particular purpose. With the new invention, the computer sends electrical impulses to the chip, which triggers the doctors to open a cell’s pores with control. Researchers hope that eventually they will be able to develop more advanced chips whereby they can choose a particular voltage to activate particular tissues, whether they be muscle, bone, brain, or others. They believe that they will be able to implant multiple chips into a person to deal with one problem or more than one problem. The author implies that scientists are excited about the new technology because
Key words: imply, scientists, excited, the new technology
Clue: “Doctors can control the activity of the cell by controlling the chip with a computer”: The doctor can control the activity of the cell by controlling the chip on the computer.
Reading the article we will see that scientists are interested in new technology because it is more accurate than previous technologies. More specifically, the doctor can now intervene and participate in the control of cell activity. So the most correct answer is D. it is more precise than previous techniques
Other answers are incorrect:
it is possible to kill cancer with a single jolt: it is possible to kill cancer with a whirlwind.
It is less expensive than current techniques: it is cheaper than current techniques.
It allows them to be able to shock cells for the first time: it allows them to first shock cells.