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【单选题】
硅酸盐水泥熟料的四个主要矿物组成中水化反应速度最慢的矿物是（ ）。A.
C 4 AF
B.
C 3 S
C.
C 3 A
D.
C 2 S
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【单选题】Which future tense is used to describe a future action which will be completed before another future action begins?
A.
simple future
B.
future progressive
C.
future perfect
D.
future perfect progressive
【单选题】I want to sing around the world . [ ]
A.
in the future
B.
in a future
C.
on future
D.
on the future
【单选题】Which future tense is used to describe the duration of a future activity?
A.
simple future
B.
future progressive
C.
future perfect
D.
future perfect progressive
【单选题】3) The Michaelis constant Km is
A.
A constant that describes the decompose velocity of ES complex;
B.
The velocity of an enzyme-catalyzed reaction;
C.
The stability of an enzyme;
D.
The affinity between enzymes and substrates;
【单选题】I hope to visit the USA sometime . [ ]
A.
in the future
B.
at future
C.
for future
D.
of future
【单选题】The foreign guests spoke highly of the children and their shows ___________ they saw in the kindergarten.
A.
what
B.
who
C.
that
D.
which
【单选题】A _____ current is a current that remains constant with time.
A.
constant
B.
alternating
C.
direct
D.
sinusoidally
【单选题】What do you want to be _____? [ ]
A.
in the future
B.
in future
C.
at future
D.
on future
相关题目：
【单选题】I hope to visit the USA sometime . [ ]
A.
in the future
B.
at future
C.
for future
D.
of future
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