对于肺癌的转移，下列哪个描述不正确
A．转移较快、较多见B．淋巴道转移首先至颈部淋巴结C．血道转移常见于脑D．早期肺癌无淋巴结转移
参考答案：B
There ______ many bikes in the streets ten years ago. [ ]
A. was
B. is
C. are
D. were
等义词
