问题
选择题
The song is about a couple forced to separate _________, but they valued the memories of their love all their lives.
A．casually
B．permanently
C．temporarily
D．frequently
答案
答案：B
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The song is about a couple forced to separate _________, but they valued the memories of their love all their lives.
A．casually
B．permanently
C．temporarily
D．frequently
答案：B
I. 该稀疏矩阵有5行 II. 该稀疏矩阵有4列 III. 该稀疏矩阵有6个非0元素 这些叙述中______是正确的。