【单选题】The amount of fluid delivered by a gear pump can be regulated by _____.
A.
throttling the pressure line
B.
changing the speed of the rotor
D.
None of the above is true
【单选题】下列哪项是以体重判断肥胖的标准( )。
A.
超过标准体重的10%为超重,24%为轻度肥胖,30%为中度肥胖,40%为重度肥胖
B.
超过标准体重的20%为超重,30%为轻度肥胖,40%为中度肥胖,50%为重度肥胖
C.
超过标准体重的15%为超重,23%为轻度肥胖,29%为中度肥胖,40%为重度肥胖
D.
超过标准体重的10%为超重,20%为轻度肥胖,30%为中度肥胖,40%为重度肥胖
E.
超过标准体重的18%为超重,23%为轻度肥胖,30%为中度肥胖,50%为重度肥胖
【单选题】The passage suggests that a large decrease in the amount of CO2 in the atmosphere would result in ______.
A.
at least a slight decrease in global temperatures
B.
at the most a slight increases in short-wavelength radiation reaching the earth
C.
a slight long-term increase in global temperatures
D.
a slight short-term increase in global temperatures
【单选题】The passage suggests that a large decrease in the amount of CO2 in the atmosphere would result in ______.
A.
at least a slight decrease in global temperatures
B.
at the most a slight increase in short-wavelength radiation reaching the earth
C.
a slight long-term increase in global temperatures
D.
a slight short-term increase in global temperatures
【单选题】听力原文: Woman: Isn't advertising really a kind of lying? Man: I don't think so. Quite often people do try to get away with those types of things, but the Federal Trade Commission is always very quick to...
A.
Justify the claims they make.
C.
Get away with their products.
D.
Always be honest in the ads.