What changes have taken place in food compared with 20 years ago?（）
A: Volume increase
B: Volume decrease
C: Calories increase
D: Calories decrease
A: Volume increase
B: Volume decrease
C: Calories increase
D: Calories decrease
举一反三
- Should Canada impose a tariff on imports, one would expect Canada's:（ ） A: Terms of trade to improve and volume of trade to decrease B: Terms of trade to worsen and volume of trade to decrease C: Terms of trade to improve and volume of trade to increase D: Terms of trade to worsen and volume of trade to increase
- A small piece of ferromagnetic media (the relative permeability is much greater than 1) is placed in a vacuum uniform magnetic field. Compared with the surrounding magnetic field, the magnetic strength in the media will ________, the magnetic field strength will __________. A: increase; increase B: increase; decrease C: decrease; decrease D: decrease; increase
- If we address to a larger group, we need to____________ the volume and pay attention to those who sit ____________ us. A: increase; far away from B: decrease; far away from C: increase; close to D: decrease; close to
- An expenditure results either in a(n) ( ) in the asset account or a(n) ( ) in a liability account. A: decrease, decrease B: increase, increase C: increase, decrease D: decrease, increase
- According to the DLVO theory, if electrolyte (coagulant) is dosed, concentration of ions having same charge with the counter-ions would _____; the electric double layer would be compressed; zeta potential _____; stability _____; thus, colloid coagulation would occur. A: decrease; decrease; decrease B: increase; decrease; decrease C: increase; decrease; increase D: increase; increase; increase