皮皮学，免费搜题
登录
搜题
【单选题】
在所学的几种液压泵中，能够实现变量的是（ ）A.
单作用叶片泵和斜盘式轴向柱塞泵
B.
齿轮泵和单作用叶片泵
C.
单作用叶片泵和双作用叶片
D.
双作用叶片泵和斜盘式轴向柱塞泵
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】My sister can play ______ guitar, while my friend Jack can play______ baseball. [ ]
A.
the,/
B.
the,a
C.
/,the
【简答题】My sister can (sing).
【简答题】One of the main features of our human languages is arbitrariness. Can you briefly explain what this feature refers to? Support your argument with examples.
【多选题】What can you infer from the beginning of this call: “Hi, Mary. I’m calling to briefly talk to you about our marketing campaign.”?
A.
This is a formal call.
B.
This is an informal call.
C.
This is not the first time they speak to each other.
D.
This is the first time they speak to each other.
【简答题】My sister can play ___________ guitar, while my friend Jack can play ___________ baseball. [ ] A .a;the B. the;a C. /;the D. the;/
【简答题】在 CAN 总线中存在 5 种不同的错误类型,即: 、 、 、 、 。
【单选题】My sister can play ______ guitar, while my friend Jack can play ______ baseball. [ ]
A.
a; the
B.
the; a
C.
/; the
D.
the; /
相关题目：