A fungus that was once considered undesirable was later used to develop:
a. Insulin c. Aspirin
b. Penicillin d. Progesterone
B
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This type of machine will use individual master cylinders to brake individual wheels to assist with steering:
a. backhoe loader b. wheel loader c. grader d. skid steer
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What materials are boilers commonly made from?
A) Most boilers are either cast iron or brass B) Most boilers are either aluminum or copper C) Most boilers are either steel or aluminum D) Most boilers are either cast iron or steel
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A poll for a life insurance company shows an epidemic of industrial stress.