It said the country's confirmed H7N9 cases were isolated and there has been no______ of human-to-human transmission.
#5258
A
mark
B
symbol
C
sign
D
signal
推荐题目
.--- I’m sorry I stepped outside for a smoke. I was very tired.. --- There is no ________ for this while you are on duty.
#5698
A
reason
B
excuse
C
cause
D
explanation
You were working too hard. You’d better keep a ________between work and relaxation.
#5921
A
promise
B
lead
C
balance
D
diary
There is a 20 minute parking _____ here, so we must get back to the car very quickly.
#7552
A
freedom
B
limit
C
allowance
D
prohibition
She had prepared carefully for her English examination so that she could be sure of passing it on her first ________.
#7416
A
try
B
attempt
C
purpose
D
hope