72.（ ）

(单选题)Though heavily struck by strong and energetic enemies, they (单选题)Now if you ______, the condition of the forest here is now i (单选题)The staple food in southern China is very different from ___ (单选题)She was curious ______ how the computer works out the compli (单选题)The masses of ______ proton and ______ neutron are nearly eq (单选题)The author’s purpose of writing this passage is to ______. (单选题)From the passage, we can conclude that ______. (单选题)Which one of the following applies to the use of renewables (单选题)The renewable energy research lost support from governments (单选题)The author’s biggest worry about using nuclear energy is tha