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Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. Check-in Requirements Passengers and their baggage must be checked in at least 45 minutes before departure for domestic flights and 60 minutes for international flights. Government-issued photo identification is required for all passengers. Passengers traveling across any international boundary(边界) are responsible for obtaining all necessary travel documents. Passengers may be denied boarding if travel documents are not in order. When check-in requirements are not met, a passenger may be separated from his/her bag. Frontier Airlines will gladly hold the bag in the destination baggage service office for pick-up at the passenger's convenience. Passengers must be at the gate 20 minutes before departure for boarding. Free Baggage Allowance for Each Ticketed Passenger Frontier Airlines, Inc. will accept, per ticketed passenger, two free checked bags not to exceed 62 inches and 50 pounds per piece—one carry-on bag and one personal item (purse, laptop, etc.). NOTE: A ticketed passenger may check one carry-on bag if it is within established limitations. All carry-on items must be put under a passenger seat or in a shared overhead compartment(行李舱). Excessive(超量) Baggage Charges An excess charge will be made for each piece of baggage over the free allowance and for each piece of over-sized or over-weight baggage. An international flight passenger should check in at least______.
A.
20 minutes before departure
B.
30 minutes before departure
C.
45 minutes before departure
D.
60 minutes before departure
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举一反三
【简答题】在测量学科中,水平角的角值范围是( )
【简答题】酸碱指示剂一般是______
【判断题】酸碱指示剂一般是无机弱酸或弱碱。
A.
正确
B.
错误
【单选题】在测量学科中,水平角的角值范围是
A.
0 °~ 360 °
B.
0 °~± 180 °
C.
0 °~ ± 90 °
D.
0 °~ 90 °
【简答题】常用的酸碱指示剂一般是()和();能作酸碱指示剂的原因是()。
【判断题】酸碱指示剂一般是弱的有机酸或有机碱。
A.
正确
B.
错误
【判断题】酸碱指示剂一般是弱的有机酸或有机碱。
A.
正确
B.
错误
【单选题】酸碱指示剂一般是()。
A.
盐;
B.
强酸;
C.
强碱;
D.
弱酸或弱碱。
【单选题】酸碱指示剂一般是()。
A.
强酸
B.
强碱
C.
弱酸或弱碱
D.
【多选题】酸碱指示剂一般是()。
A.
有机弱酸
B.
有机弱碱
C.
强酸
D.
强碱
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