剥离线理构造

______ his timely help, Kate overcame the hardship at last.                                                                                                                                                                                                                                                                                                                                                                                                                         

A．Now that

B．Thanks to

C．Since

D．Because

两数相除商为3.2，如果被除数不变，除数扩大到原数的8倍，商应是______．

豆科作物体内含氮（），而禾本科作物体内含氮（）。

设定行政许可，应当规定行政许可的 实施 。

在Photoshop中编辑好路径后，用什么工具可以将折线变换成曲线（）。

A.直接选择

B.选择路径

C.转换点工具

D.形状工具