皮皮学，免费搜题
登录
搜题
【单选题】
which type of gas turbine engine is the best to serve as the powerplant of high subsonic speed aircraft?A.
high bypass turbofan engine
B.
turboprop engine
C.
low bypass turbofan engine
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】English is a language ______ in many countries.
A.
spoken
B.
speaking
C.
be spoken
D.
to speak
【单选题】The meeting was very successful and our teacher____in English.
A.
end up speaking
B.
ended speaking
C.
ended up to speak
D.
ended up speaking