动名词短语“using renewable energy sources”作主语时,谓语动词要用单数形式。这里描述的是一般情况,所以用一般现在时,选项B“is”正确。选项A“are”是复数形式,不符合主谓一致。选项C“was”是一般过去时的单数形式,选项D“were”是一般过去时的复数形式,都不符合句子描述的一般现在时的情况。反馈 收藏
Using renewable energy sources can reduce pollution. Using renewable energy sources has many advantages. Using renewable energy sources is the future trend.相关知识点: 试题来源: 解析 答案:这四句中第一句、第二句、第三句和第四句中的 Using renewable energy sources 都是动名词短语作主语。在这四句中都...
S. Kalogirou, Seawater desalination using renewable energy sources, Prog. Energy Combust. Sci. 31 ( 2005 ) 242–281. 10.1016/j.pecs.2005.03.001Kalogirou SA (2005) Seawater desalination using renewable energy sources. Prog Energy Combust Sci 31:242–281...
Hanafi A (1994) Desalination using renewable energy sources. Desalination 97(1–3):339–352A. Hanafi, Desalination using renewable energy sources. Desalination 97, 339-352 (1994).A. Hanafi, Desalination using renewable energy sources, Desalination, 97 (1994) 339-352....
It has been engineered to accommodate the inherent variability and intermittency of offshore wind and solar power, providing an effective solution for the on-site utilization of renewable energy resources, according to the company. Seawater is a plentiful resource for hydrogen production. Seawater elect...
Using renewable energy sources is beneficial,___reduce carbon emissions. A. help B. t
Using renewable energy sources is a trend. What are “renewable energy sources”? A. 可再生能源 B. 不可再生能源 C. 传统能源 相关知识点: 试题来源: 解析 A。动名词 Using renewable energy sources 作主语。“renewable energy sources”是“可再生能源”的意思。动名词作主语在语法结构上比较稳定,不...
这个空缺少的是宾语 put ？ into practice.少了个名词 我想想给你举个例子 what可以等于先行词+that/which 但是你得有先行词 what you want is money。你想要的无非是钱。this is the money that/which you want。这就是你想要的钱。不知道你懂了不？楼...
VicorFactorized Power Architecture(FPA) is uniquely suited to managing the wide input voltage derived from renewable energy sources and delivering a precise output voltage required for an optimum electrolysis process, which must be precise. It cannot be too fast or too slow: too slow and nothing ...
nuclear power C. solar and wind power D. coal and oil 相关知识点: 试题来源: 解析 C。“renewable energy sources”指可再生能源。选项 A“fossil fuels”是化石燃料;选项 B“nuclear power”是核能;选项 D“coal and oil”是煤和石油,这些都不是可再生能源。而太阳能和风能是可再生能源。反馈 收藏 ...