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【单选题】
摄像机靶面尺寸最小的是( )。A.
2/3in
B.
1/2in
C.
1/3in
D.
1/4in
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举一反三
【简答题】曲柄摇杆机构运动有两个重要的特性是: ; 。
【简答题】图示矩形板,重量不计,用六根直杆固定在地面上,各杆重量均不计,杆端均为光滑球铰链。在 A 点作用铅直力 P ,则其中内力为零的杆有 。
【单选题】He proposed that we ______ a party for the success of the basketball match.
A.
held
B.
hold
C.
would hold
D.
to hold
【单选题】He proposed that we _______ a meeting , which suggested he ________ in our plan .
A.
held; was interested
B.
hold; was interested
C.
should hold ; be interested
D.
should hold ; interested
【简答题】长安的众多佛寺中,大慈恩寺地位极高,它不仅是唐代长安三大译经场之一,更是中国佛教( )的祖庭。
【单选题】The man proposed to the woman because ______.
A.
he was eager to visit Switzerland with the woman
B.
he was afraid that the woman might leave him
C.
he realized he could find no other woman better
D.
he could finally overcome his fear for marriage
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