To prevent headache, watering eyes and blindness caused by the glare from snow, dark glasses are()
A.indispensable
B.useful
C.ineffective
D.available
- · 有4位网友选择 D,占比44.44%
- · 有3位网友选择 C,占比33.33%
- · 有1位网友选择 B,占比11.11%
- · 有1位网友选择 A,占比11.11%
A.indispensable
B.useful
C.ineffective
D.available
A、an expansion in overall economic activity.
B、a decrease in expected inflation.
C、an increase in government deficits.
D、only A and C of the above.
In the mechanism,,,. Crankrotates with a constant angular velocityin clockwise direction. At the position shown, points,andare on one vertical line. Which equation is correct for the velocity/acceleration of pointor?
A、
B、
C、
D、
B.be looked
C.looking
D.being looked
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