异节奏流水施工的基本特点之一是,流水步距彼此相等,且等于所有流水节拍的( )。
A. 最大公倍数
B. 最小公倍数
C. 最大公约数
D. 最小公约数
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—Good evening. I ______ to see Miss Jessie. —Oh! Good evening. I'm sorry, but she is not in.
A. came
B. come
C. have come
D. had come
HiperLAN/2的主要技术特点包括( )。 ① 高速数据传输 ② 面向连接 ③ QoS ④ 自动频率分配 ⑤ 移动性 ⑥ 网络与应用无关 ⑦ 省电 ⑧ 安全性
A. 除⑥之外全部都是
B. 除⑦之外全部都是
C. 除⑥⑦之外全部都是
D. 全部都是
《诗经》中采自各地民歌的是
A. 颂
B. 大雅
C. 小雅
D. 风
—The dinner was delicious! —I agree. I am so full. —That's too bad. But some dessert ______.
A. has ordered
B. will be ordered
C. has been ordered
D. was going to be ordered