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搜题
【单选题】
子宫收缩特点正确的是A.
每次收缩由强到弱，逐渐消失
B.
宫缩时胎盘血循环不受影响
C.
宫缩起点在子宫底部
D.
上段收缩，向下逐渐减弱
E.
收缩强度为下段的3倍
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举一反三
【单选题】After the robbery, the shop installed a sophisticated alarm system as an insurance ______ further losses.
A.
towards
B.
for
C.
from
D.
against
【单选题】在水溶液中，对简单金属离子而言，大致以（）分族元素为界线；位于其左方的金属元素不能在水溶液中的阴极上还原电沉积；位于其右方的金属元素都能较容易地自水溶液中在阴极上还原电沉积出来。
A.
钛
B.
碳
C.
铬
D.
锡
【简答题】After the robbery，the police arrived at the scene of the ______ to take the statements from the victim and the witness． 抢劫案发生后，警察赶到现场从受害人和目击者那里取证。
【简答题】After the robbery, the shop installed a sophisticate alarm system as an insurance ________ further losses. A) for B) from C) against D) towards
【单选题】After the robbery, the shop installed a sophisticated alarm system as an insurance______ further losses.
A.
for
B.
from
C.
against
D.
towards
【单选题】After the robbery, the police arrived at ______scene in _____ flash. [ ]
A.
a; a
B.
a; the
C.
the; the
D.
the; a
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