
如图2-9-5所示,1是边长为R的正三角形,2是半径为R的圆,图中2的自身辐射角系数X2,2等于( )。[2010年真题]图2-9-5
A.1.0 B.0.52 C.0.48 D.0.05


A.1.0 B.0.52 C.0.48 D.0.05
请用每空所缺单词的字母代码填入。(为防止批阅故障,请填入大写字母)
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices, Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
A) arrived | B) consuming | C) direct | D) exclusively |
E) including | F) inform | G) raw | H) reached |
I) relatively | J) remains | K)resources | L) staple |
M) suggest | N) surprising | O) test |
Questions 26 to 35 are based on the following passage.
The method for making beer has changed over time. Hops (啤酒花),