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【单选题】
关于间干细胞的说法正确的是（）A.
间干细胞最早是从血液中分离而来的
B.
间干细胞是一群完全相似的细胞
C.
间干细胞在体内或体外特定的诱导条件下，能诱导分化为成骨细胞、脂肪细胞、软骨细胞、肌细胞，而不能形成神经细胞
D.
间干细胞具有很强的免疫原性，容易引起免疫排斥反应
E.
间干细胞在多种组织中广泛存在，包括脂肪组织、脐带、脐带血、胎盘、羊水、肌肉组织以及牙龈等
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举一反三
【单选题】I didn’t sleep well last night, but it was not my own ________, because the plane kept making noise.
A.
mistake
B.
fault
C.
trouble
D.
problem
【单选题】I didn’t sleep well last night because of the noise. It was not until midnight ___ the noise in the street stopped.
A.
that
B.
when
C.
since
D.
at which
【单选题】I didn’t sleep well last night because it was too _______ outside.
A.
noisy
B.
quiet
C.
noise
D.
Loud
【单选题】I didn’t sleep well ________ the noise from that factory nearby.
A.
because
B.
because of
C.
Unless
【简答题】anyhow behavior defend emergency fault tolerate sink scenes ager upset 15 I didn’t sleep well that night, but it was my own ______ .
【单选题】—You look tired. Why? — I didn’t sleep well. The math exam is coming. —____ . I ’ ll help you.
A.
Don’t worry
B.
That’s too bad
C.
Yes
D.
Thanks
【单选题】I didn’t sleep well last night as all the heating __________.
A.
went off
B.
went on
C.
went up
D.
went down
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