One-hour notice
Dead slow ahead
Finished with engines
Half astern
第1题：
When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements? Choose all the valid answer choices)
A. Bridges are faster than switches because they have fewer ports.
B. A switch is a multiport bridge,
C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame. received.
D. A bridge will forward a broadcast but a switch will not.
E. Bridges and switches increase the size of a collision domain.
F. None of the above statements are true.
第2题：
The overall goal of the book is to help bridge the gap between research and teaching.()
第3题：
A、space
B、distance
C、room
D、gap
第4题：
Channel 13（156．65 MHz），the designated bridge-to-bridge channel，may NOT be used to ______．
A.exchange navigational information between vessels
B.exchange navigational information between a vessel and a shore station
C.conduct necessary tests
D.exchange operating schedules with company dispatcher
第5题：
In an Information system. The（ ） is the bridge between hardware and people
A.keyboard
B.internet
C.disk
D.data
第6题：
Effective ()June 1, 2003, all full orders received for six week delivery will be billed.
A、as if
B、as for
C、as of
D、as to
第7题：
The ORDERS table has these columns:ORDER_ID NUMBER(4) NOT NULLCUSTOMER_ID NUMBER(12) NOT NULLORDER_TOTAL NUMBER(10,2)The ORDERS table tracks the Order number, the order total, and the customer to whom the Order belongs.Which two statements retrieve orders with an inclusive total that ranges between 100.00 and 2000.00 dollars? （）
A. SELECT customer_id, order_id, order_total FROM orders RANGE ON order _ total (100 AND 2000) INCLUSIVE;
B. SELECT customer_id, order_id, order_total FROM orders HAVING order _ total BETWEEN 100 and 2000;
C. SELECT customer_id, order_id, order_total FROM orders WHERE order _ total BETWEEN 100 and 2000;
D. SELECT customer_id, order_id, order_total FROM orders WHERE order_total>= 100 and <= 2000;
E. SELECT customer_id, order_id, order_total FROM orders WHERE order_total>= 100 and order_total <= 2000;
第8题：
A.gap
B.difference
C.diversity
第9题：
The officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in ______of operation are immediately implemented(执行).
A.ahead or astern
B.fore or aft
C.up or down
D.speed or direction
第10题：