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【单选题】
tuple2 = ('hello Python',) print(type(tuple2))A.
str
B.
object
C.
list
D.
tuple
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【单选题】We have launched another man-made satellite, ______ is announced in today’s newspaper.
A.
that
B.
which
C.
who
D.
what
【单选题】We launched an extensive attack； there was nothing for the enemy to do but ___.
A.
surrendering
B.
surrendered
C.
surrender
D.
to surrender
【单选题】(2013·天津，6)We have launched another man－made satellite，________is announced in today's newspaper.
A.
that
B.
which
C.
who
D.
what
【单选题】A big step _____ to strengthen China's health care systems since we launched an effort in 2008. [ ]
A.
has been taken
B.
is being taken
C.
was taken
D.
had been taken
【简答题】步进任务中,若设定步进驱动器为500ppr,丝杠螺距是5mm,丝杠与电机轴是1:1连接,按钮按一下放松一次,滑块移动的位移理论上是 mm。
【简答题】治疗中毒型细菌性痢疾，应早期、大剂量、短程应用，具有抗炎、减轻脑水肿和抗休克作用的药物是：( ) A．甘露醇 B．抗生素 C．肾上腺皮质激素 D．免疫球蛋白 E．免疫抑制剂
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