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【单选题】
我国最新研制并装备部队的( )直升机改变了陆军长期没有专用武装直升机的境况。
A.
阿帕奇
B.
武直9
C.
武直10
D.
直20
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皮皮学刷刷变学霸
举一反三
【单选题】以下哪种测金仪器是根据密度法设计的:
A.
AGT3型测金仪
B.
GK-2000贵金属测试仪
C.
电子探针分析仪
D.
X射线荧光光谱仪
【单选题】He still remembers the long road ___ success.
A.
at
B.
for
C.
to
【单选题】He still remembers ______ to Shanghai when he was very young.
A.
taking
B.
being taken
C.
taken
D.
to take
【单选题】He still remembers the place ______ we visited last year?
A.
that
B.
where
C.
when
D.
in which
【判断题】矛盾的斗争性是绝对的,所以斗争是不受限制的。
A.
正确
B.
错误
【多选题】有很多因素会引起反射率的变化,包括()
A.
太阳位置、传感器位置、地理位置
B.
季节、气候变化
C.
大气状况
D.
地物本身的变异
【简答题】以不同的初速度将两个物体同时竖直向上抛出并开始计时。一个物体所受空气阻力可忽略,另一个物体所受空气阻力大小与物体速率成正比。下列用虚线和实线描述两物体运动的v-t图象,可能正确的是( )。
【单选题】Jim has retire, but he still remembers the happy time ___with his students.
A.
to spend
B.
spend
C.
spending
D.
spent
【单选题】Now he still remembers ____ it ____ him to get the chance.
A.
that; took
B.
what; cost
C.
how; cost
D.
what; forced
【单选题】He still remembers __________ to Shanghai when he was a child .
A.
taking
B.
to take
C.
to be taken
D.
being taken
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