组织胞浆菌病(histoplasmosis)
参考答案：
是有荚膜组织胞浆菌引起的一种传染性很强的真菌病，以侵犯网状内皮系统或肺部为主，可累及全身各脏器。
They____on the program for almost one month before l was arranged to help them. Now, we____on it as no result has come out.
A．had been working: are still working
B．had worked; were still working
C．have been working; have worked
D．have worked; are still working
禁止行人、非机动车、履带式铁轮车、（）、（）、拖拉机、农用运输车、（）、（）、以及设计时速低于70公里和未经高速公路管理机构批准的超限车辆进入高速公路。
