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【单选题】
—Doing eye exercises works well in _______ our eyesight. —So it does. [ ]A.
to protect
B.
protected
C.
protects
D.
protecting
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【单选题】When I arrived,I saw the place was already______ by two strangers in uniforms. [ ]
A.
occupied
B.
conquered
C.
possessed
D.
owned
【单选题】When I arrived I saw the place was already ______ by two strangers in uniforms.
A.
conquered
B.
occupied
C.
possessed
D.
owned
【简答题】设某路由器建立了如下路由表: 目的网络 子网掩码 下一跳 128.96.39.0 255.255.255.128 接口 m0 128.96.39.128 255.255.255.128 接口 m1 128.96.40.0 255.255.255.128 R2 192.4.153.0 255.255.255.192 R3 * (默认) —— ...
【简答题】设某路由器建立了如下路由表: 目的网络 子网掩码 下一跳 128.96.39.0 255.255.255.128 接口m0 128.96.39.128 255.255.255.128 接口m1 128.96.40.0 255.255.255.128 R2 192.4.153.0 255.255....
【单选题】对钢制圆轴作扭转校核时发现强度和刚度均比规定的降低了20%,若安全系数不变,改用屈服极限提高了30%的钢材,则圆轴的 。
A.
强度足够、刚度不够
B.
强度不够、刚度足够
C.
强度、刚度均足够
D.
强度、刚度均不够
【简答题】设某路由器建立了如下路由表: 目的网络 子网掩码 下一跳 128.96.39.0 255.255.255.128 接口 m0 128.96.39.128 255.255.255.128 接口 m1 128.96.40.0 255.255.255.128 R2 192.4.153.0 255.255.255.192 R3 * (默认) —— ...
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