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【单选题】
串行通信的传送效率的单位是波特,而波特的单位是______。A.
字符/秒
B.
位/秒
C.
帧/秒
D.
帧/分
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Lesson 4 short exchanges-multiple choices-13
A.
340 5knots
B.
240 5m/s
C.
100 7m/s
D.
150 11m/s
【单选题】Lesson 4 short exchanges-multiple choices-6
A.
LKO-01Departure
B.
Squawk3421
C.
C limb 600meters
D.
LKO-1 Departure
【单选题】— What did your father do last holiday? — He _____________ football last holiday. [ ]
A.
play
B.
plays
C.
played
【单选题】小明今年 4 岁,他喜欢自言自语。搭积木时,他边搭边说: “ 这块放在哪里呢?不对,应该这样 .... 这是什么?就把它放在这里作门吧。 ” 这属于哪种自言自语形式:
A.
游戏语言
B.
自我语言
C.
想象语言
D.
问题语言
【单选题】平均利润率是（ ）
A.
社会剩余价值总量和社会预付总资本的比率
B.
社会剩余价值总量和社会预付可变资本的比率
C.
年剩余价值总量和年预付可变资本总量的比率
D.
社会平均利润总量和社会预付可变资本的比率
【单选题】What holiday is Double Sh Night?
A.
It is a Chinese holiday for lovers.
B.
It is a western holiday for lovers.
C.
It is an estern holiday for lovers.
D.
It is an international holiday for lovers.
【单选题】What kind of holiday it is?
A.
celebrated as a doctors' holiday.
B.
celebrated as a teachers' holiday.
C.
celebrated as a lovers' holiday.
D.
celebrated as a nurses' holiday.
【单选题】Lesson 4 short exchanges-multiple choices-8
A.
Due traffic congestion
B.
Due to missing passenger.
C.
Due picking up passengers from another flight.
D.
Due flow control
相关题目：
【单选题】Lesson 4 short exchanges-multiple choices-13
A.
340 5knots
B.
240 5m/s
C.
100 7m/s
D.
150 11m/s