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About ______ per cent of children with two right-handed parents will be left-handed.
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更多“About ______ per cent of child…”相关的问题
The velocity of escape is about ______.
A．40,200 miles per minute
B．25,000 kilometers per hour
C．40,200 kilometers per hour
D．25,000 miles per minute
A.with
B.in
C.on
D.under
A、like
B、as if
C、even if
Which of the following statements about the standard 90 db is NOT true？
A．It suits everyone.
B．It can protect only 90 per cent of the working force.
C．It requires 16 quiet hours of rest each day for the ears to recover.
D．It can hardly be applied in reality.
In Germany，______ .
A．birth rate has gone up to 1.3 per woman
B．people over 65 now constitutes about half the adult population
C．its population of under-35s is twice as large as that of over-65s
D．by 2030 its working force may have shrunk by 25%
W: Well, as a sign of our support to your efforts, we'll make a special reduction of US $ 0. 50 per dozen. We can't take less.
Q: What are they talking about？
(16)
A．They are talking about sale.
B．They are talking about product,
C．They are talking about a special reduction.
D．They are talking about price.
What is said about the "beauty machine" in the first paragraph？
A．It can be used by any person who wants herself/himself to be beautiful.
B．It can just help editors make more beautiful pictures.
C．It can lead plastic surgeons achieve a better result in a patient.
D．It can be used in digital camera to make us more beautiful now.
A．Timekeeping in medical tomography must be precise because the changes in travel time caused by density fluctuations are slight.
B．To understand how ocean acoustic tomography works, it is necessary to know how sound travels in the ocean.
C．Ships are another possibility, but they would need to stop every 50 kilometers to lower measuring instruments.
D．These variations amount to only about 2 to 3 percent of the average speed of sound in water, which is about i 500 meters per second.
