所有预算项日均不考虑以往的实际情况，完全根据未来一段时间的需要而制定的预算编制方法称为（）。
A. 零基预算
B. 概率预算
C. 弹性预算
D. 滚动预算
那一种氨基酸，可用来形成甲状腺素（Thyroxine）及肾上腺素（Epinephrine）:
A. 甘氨酸
B. 苯丙氨酸
C. 色氨酸
D. 甲硫氨酸
What does this passage mainly deal with
A. The tendency of earth's becoming hotter.
B. The assessment of earth's temperature.
C. The menace of global warming.
D. The measurement of tackling global warming.
What does the report from NRC indicate
A. The earth will become warmer.
B. It is somewhat suspicious of Michael Mann's assertion.
C. The earth reaches the highest temperature in the history.
D. The proxy measurements are reliable.
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