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搜题
【单选题】
乳糖操纵子描述正确的是
A.
只具有正调控
B.
正负调控均无
C.
只具有负调控
D.
正负调控均有
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举一反三
【简答题】I find it really easy________(make) new friends at school.A. to make
【单选题】I find it really easy ________ new friends at school.
A.
make
B.
to make
C.
making
【单选题】I find it really easy __________ new friends in the school.
A.
make
B.
making
C.
to make
【判断题】改善集料级配,既可增加混凝土流动性,也能改善黏聚性和保水性。( )
A.
正确
B.
错误
【简答题】I find it really easy ( make) new friends at school.
【单选题】I _______ food without salt. I find it really tasteless.
A.
don't used to eat
B.
didn't use to eating
C.
am not used to eating
D.
am not used to eat
【单选题】今天(Jīntiān)天气(tiānqì)______?
A.
多少(duōshao)
B.
什么(shénme)
C.
怎么样(zěnmeyàng)
D.
吗(ma)
【简答题】[ ˈ w ɒ rənti ] ______________________
【简答题】环跳(Huántiào,GB30)足少阳胆经
【单选题】SNMP的管理信息库中,MIB-2对象的标识符是( )。
A.
.1.3.6.1.1.1
B.
.1.3.6.1.2.1
C.
.1.3.6.4.1
D.
.1.3.6.1.4.9