3. What operation is necessary to adjust the fuel injection timing as based on the data recorded during a load run?(A) Stop the engine(B) Full speed(C) Open cylinder head(D) Turning gear on

3. What operation is necessary to adjust the fuel injection timing as based on the data recorded during a load run?
(A) Stop the engine
(B) Full speed
(C) Open cylinder head
(D) Turning gear on

答案：登入後查看
統計： A(125), B(49), C(34), D(27), E(0) #3456999

詳解 (共 1 筆)

小時不讀書，長大做輪機

B1 · 2025/07/15

#6545409

根據負載運行期間記錄的數據，必須進行哪種...

(共 63 字，隱藏中）

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49. 某校建置了一個選課系統，學生登入後可選擇欲修習的課程。資料庫中包含三個資料表：Student(StudentID, Name, Class)：記錄學生的學號、姓名與班級CourseSelection(StudentID, CourseID)：記錄選課紀錄，包含學生學號與課程代碼Course(CourseID, CourseName, Room) : 記錄課程代碼、課程名稱、上課教室Student 資料表的主鍵(primary key)為 StudentID，Course 資料表的主鍵為 CourseID。若每位學生可修習多門課，請問 CourseSelection 資料表最合理的主鍵及外鍵(foreign key)限制設定為下列何者？(A) 主鍵為 StudentID，外鍵只有 CourseID(B) 主鍵為 CourseID，外鍵只有 StudentID(C) 主鍵為 CourseID+StudentID，CourseID 及 StudentID 皆為外鍵(D) 主鍵為 StudentID，CourseID 及 StudentID 皆為外鍵

3. What operation is necessary to adjust the fuel injection timing as based on the data recorded during a load run?(A) Stop the engine(B) Full speed(C) Open cylinder head(D) Turning gear on

詳解 (共 1 筆)

其他試題

3. What operation is necessary to adjust the fuel injection timing as based on the data recorded during a load run?
(A) Stop the engine
(B) Full speed
(C) Open cylinder head
(D) Turning gear on