精梳机一个钳次内的四个阶段是：（）。
参考答案：锡林梳理阶段、分离前准备阶段、分离接合阶段、锡林梳理前准备阶段
The coach asked his staff to the large group of journalists waiting for him to announce his training plans.
A．adapt to
B．appeal to
C．refer to
D．attend to
（）属于叶部病害。
A、锈病、白粉病
B、锈病、烂皮病
C、白粉病、烂皮病
D、白粉病、立枯病
