【单选题】【消耗次数：1】
原核微生物细胞核糖体大小为
①
30S
②
50S
③
70S
④
80S
参考答案：
复制
纠错
相关题目
【单选题】
文法G【S】=（{b}，{S，B}，S，{S→b│bB，B→bS}），该文法所描述的语言____。
①
L(G[S])={b2i+1│i≥0}
②
L(G[S])={b2i+1│i≥1}
③
L(G[S])={bi│i≥0}
④
L(G[S])={b2i│i≥0}
随机题目
【单选题】
下列社会关系中，应属于民法调整对象的是 ( )
①
A．梁某和郭某签订的房屋租赁合同关系
②
B．梁某代郭某去传达室领取信件的关系
③
C．粱某向税务机关缴纳税款的关系
④
D．梁某因驾车违章与交管部门形成的处罚与被处罚的关系
【单选题】
—Be sure to get up earlier tomorrow morning.
—______ , I’ll be as early as a bird.
①
No, I will
②
Of course not
③
I’m afraid I can
④
OK, I will
【单选题】
The young man struggled to _______ where he was at the time the murder took place.
①
reduce
②
respond
③
respond
④
recall
【单选题】
Why not ______with me? Violent exercise might help to shake you out of your disappointment in love.
①
do some sports
②
to do some sports
③
by doing some sports
④
about to do some sports
【单选题】
—Youshouldhavethankedherbeforesheleft.— Imeant_______,butwhenIwasleavingIcouldntfindheranywhere.
①
to do
②
to
③
doing
④
doing so
【单选题】
A Chinese traditional wedding ceremony will ______us perfectly.
①
follow
②
join
③
combine
④
suit
【单选题】
The number of people invited______ sixty, but a number of them______ absent for different reasons.
①
were; was
②
was; was
③
was; were
④
were; were
【单选题】
Whatsurprisedmewasnotwhathesaidbut_______hesaidit.
①
the way
②
in the way that
③
in the way
④
the way which
【单选题】
—Are you a teacher?—No, but I ________ once. I worked in a middle school for three years.
①
am
②
will
③
do
④
was