【简答题】动物对饲料的消化方式有( )、( )和( )。
【单选题】面部表情是指通过眼部肌肉、()和口部肌肉的变化来表现各种情绪状态。
【判断题】Langue refers to the abstract linguistic system shared by all the members of a speech community. Parole refers to the realization of langue in actual use.
【判断题】Langue refers to the abstract linguistic system shared by all the members of a speech community, parole refers to the realization of langue in actual use.
【单选题】通过眼部肌肉、颜面肌肉和口部肌肉的变化来表现各种情绪状态是指()
【简答题】背景资料 某桥梁工程在施工前,项目经理部为了保证安全,防止安全隐患的出现,在基坑开挖时采取了防坍塌措施,具体的措施如下: (1)根据土质和深度来确定围护方法。 (2)机械开挖不支撑基坑时,每次挖方修坡深度不得超过1.5m。 (3)人工开挖不支撑基坑时,每次挖方修坡深度不得超过0.5m。 (4)任何情况下,在基坑顶边弃土时,弃土堆坡脚至挖方上边缘的距离不得大于1.2m,堆土高度不得超过1.5m。 在...
【单选题】The author mentions the Cyprus jugs to illustrate that
A.
it is hard for archaeologists to distinguish artifacts.,
B.
there are still many artifacts to be discovered.
C.
archaeologists consider every artifact valuable.
D.
some artifacts are not practically valuable.