【单选题】Which of the following underlined words does indicate permission?
A.
Visitors may not feed the animals.
B.
I may be going back in the fall.
C.
She may be waiting for us.
D.
A lot of men died who may have been saved.
【判断题】A fall may indicate definiteness, a rise may suggest some implications, and a fall-rise may imply incompleteness.
【简答题】Listen and do Ex. D & E and fill the gap with right answer.
【简答题】Fill in the blanks in Ex. 5 on p39 with the idiomatic collocations in Ex. 2.
【单选题】冷媒水突然停止时,螺杆式冷(热)源机组的紧急操作是关闭供液阀,其目的是( )。
【简答题】BL寄存器高4位保持不变,低4位置“1”的操作正确的是( )。 A.AND BL,0FH B.OR BL,0FH C.NOT BL,0FH D.XOR BL,0FH
【单选题】冷媒水突然停止时,为了防止蒸发器中的水结冰,应将螺杆式冷(热)源机组的( )。
【多选题】下列有关预收款的说法正确的是( )。
B.
经营者采取预收款方式但未按照约定提供的,应当按照消费者的要求履行约定
C.
经营者采取预收款方式但未按照约定提供的,应当退回预付款
D.
经营者除退回预付款外,还应当承担预付款的利息和消费者预期损失
【单选题】下列有关预付款的说法正确的是( )。
D.
保函的担保金额可根据预付款扣回的金额相应增加