Fireworks eye injuries can result in each of the following EXCEPT
A. blindness.
B. permanent vision, loss.
C. gh3ucoma and cataracts.
D. head-related injuries.
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The author states that a supply of non-human workers for low IQ jobs would
A. substitute them for humans completely.
B. henefit man mentally and physically.
C. give rise to the opposition from geneticists.
D. be a disadvantage to many human workers.
In which of the following ways the handgrip work？
A. It can be commercialized.
B. It reduces the dangerous forces in bicycle accidents.
C. It adds a few dollars to the cost of a bike.
D. It changes the direction of the handlebars in an impact.
By "the honest but hairy hero" (in Para. 3) the author most probably refers to
A. the human supervisor.
B. the geneticists as a whole.
C. the non-human worker.
D. the man breeding super-apes.
How many percent of babies were born with low birth weight to women who were not infected
A. Less than 13%.
B. About 9.5%.
C. 1.5%.
D. 17.5%,
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