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 from  $1$ to  $10.$
    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 membranes become permeable when exposed to electrical impulse. Researchers have conducterd genetic research for years with a trial-and -error process of bombarding cells with electricity in an attempt to introduce foreign subtances 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 cell's membrane pores to open and activate the cell in order to correct diseased tissues. It permits physicians 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.

$1.$ The word strand in the second sentence is closest in meaning to
$A.$ type       $B.$ thread       $C.$ chip       $D.$ color

$2.$ The author implies that scientists are excited about the new technology because
$A.$ It is less expensive than current techniques.
$B.$ It allows them to be able to shock cells for the first time.
$C.$ It is more precise than previous techniques.
$D.$ It is impossible to kill cancer with a single jolt.

$3.$ The author states that scientists previously were aware that
$A.$ They could control cells with a separate computer.
$B.$ Electronic impulses could affect cells.
$C.$ Electric charges could harm a person.
$D.$ Cells interact with each other through electrical charges. 

$4.$The word bombarding in the second paragraph is closest in meaning to
$A.$ barraging       $B.$ influencing       $C.$ receiving       $D.$ testing

$5.$ The author implies that up to now, the poin of applying electric impulses to cells was to
$A.$ kill them        $C.$ stop growth
$B.$ open their walk to introduce medication    $D.$ combine cells

$6.$ The word triggers in the second paragraph is closest in meaning to
$A.$ damages       $B.$ causes       $C.$ shoots       $D.$ assists

$7.$ The word eventually in the third paragraph is closest in meaning to
$A.$ finally       $B.$ in the future       $C.$ possibly       $D.$ especially

$8.$ The word they in the first paragraph is closest in meaning to
$A.$ researchers       $B.$ chips       $C.$ voltages       $D.$ tissues

$9.$ The word others in the first paragraph refers to other
$A.$ researchers       $B.$ chips       $C.$ voltages       $D.$ tissues

$10.$ The author indicates that it is expected doctors will be able to
$A.$ place one large chip in a person to control multiple problems.
$B.$ place more than one chip in a single person.
$C.$ place a chip directly inside a cell.
$D.$ place a chip inside a strand of hair.

$1.B       2.C       3.B       4.A       5.B       6.B       7.B       8.A       9.D       10.B$

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