c. Chocolate had never been manufactured in the United States before Milton Hershey did it.d

Which of the following best defines the word subsidiary as used in paragraph 3?
a. a company owned entirely by one person
b. a company founded to support another company
c. a company that is not incorporated
d. a company controlled by another company
434.
The writer’s main purpose in this passage is to
a. recount the founding of the Hershey Chocolate Company.
b. describe the process of manufacturing chocolate.
c. compare the popularity of chocolate to other candies.
d. explain how apprenticeships work.
435.
According to the passage, Milton Hershey sold his caramel company in
a. 1894.
b. 1900.
c. 1904.
d. 1905.
436.
The mention of the Chicago International Exposition of 1893 in the passage indicates that
a. the exposition in Chicago is held once every three years.
b. the theme of the exposition of 1893 was Food from Around the World.”
c. the exposition contained displays from a variety of countries.
d. the site of the exposition is now a branch of the Hershey Chocolate Company.
437.
Which of the following words best fits in the blank in paragraph 1 of the passage?
a. dramatic
b. modest
c. undignified
d. rewarding
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Reading Comprehension Questions
6801_501_ReadingCompQuest_4E[fin].indd 200 3/18/10 1:34:58 PM

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(1) By using tiny probes as neural prostheses, scientists maybe able to restore nerve function in quadriplegics and make the blind see or the deaf hear. Thanks to advanced techniques, a single, small, implanted probe can stimulate individual neurons electrically or chemically and then record responses. Preliminary results suggest that the micro- probe telemetry systems can be permanently implanted and replace damaged or missing nerves) The tissue-compatible microprobes represent an advance over the typical aluminum wire electrodes used in studies of the cortex and other brain structures. Researchers accumulate much data using traditional electrodes, but there is a question of how much damage they cause to the nervous system. Microprobes, which are about as thin as a human hair, cause minimal damage and disruption of neurons when inserted into the brain) In addition to recording nervous-system impulses, the microprobes have minuscule channels that open the way for delivery of drugs, cellular growth factors, neurotransmitters, and other neuroactive compounds to a single neuron or to groups of neurons. Also, patients who lack certain biochemicals could receive doses via prostheses. The probes can have up to four channels, each with its own recording/stimulating electrode.
438.
One similar feature of microprobes and wire electrodes is

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