A. and
B. for
C. but
D. or
第1题:
A、his’
B、his
C、he’s
D、he
第2题:
You are signing on a deck officer,who will be designated as one of the GMDSS operators,before sailing foreign.Which statement is TRUE ________.
A.He/she must have an STCW certificate endorsed as“Valid for Service on Vessels Operating in the GMDSS System”
B.He/she must present either an FCC-issued license or a Coast Guard-issued license
C.You must consult the“List of Qualifications”on the reverse of his/her FCC-issued license
D.His/her Merchant Mariners Document must have an added endorsement as “Radio Electronics Officer”
第3题:
A、Having given
B、To give
C、Giving
D、Given
第4题:
在主线程中启动一个子线程执行reading函数。 import threading import time import random def reading(): for i in range(10): print("reading",i) time.sleep(random.randint(1,2)) _______________________________ r.setDaemon(False) r.start() print("The End")
A.r=threading.Thread(reading)
B.r=threading.Thread(target=reading())
C.r=threading.Thread(target=reading)
D.r=Thread(target=reading)
第5题:
第6题:
A.keep
B.to keep
C.keeping
D.kept
第7题:
第8题:
Do you think it necessary ______ an English diary every day?
A. keep
B. to keep
C. keeping
D. kept
第9题:
第10题:
如何修改MySQL慢查询的时间阈值
A.修改全局变量long_query_time的值
B.修改mysql启动配置文件[mysqld]项里的long_query_time的值
C.修改全局变量long_query_io
D.修改全局变量innodb_lock_wait_timeout