风冷冷凝器可分为自然对流空气冷却式冷凝器和强制对流空气冷却式冷凝器。

下图为接在50Hz低压交流电源上的打点计时器，在纸带做匀加速直线运动时打出的一条纸带，图中所示的是每打5个点所取的记数点，但第3个记数点没有画出。由图数据可求得（保留两位有效数字）：

（1）该物体的加速度为                    m/s²，

（2）第3个记数点与第2个记数点的距离约为            cm，

（3）打第3个点时该物体的速度为               m/s。

保持子宫前倾位置的主要韧带是（）

A.圆韧带

B.阔韧带

C.卵巢固有韧带

D.主韧带

E.骨盆漏斗韧带

女性，30岁，乏力、食欲减退、咳嗽1个月，低热、盗汗1周，胸片示右肺上叶尖段片状模糊阴影伴空洞形成。体检未发现阳性体征。

以下最不应被遗忘的检查是

A．痰细菌培养

B．痰找抗酸杆菌

C．末梢血白细胞计数

D．上消化道造影

E．呼吸功能检查

Divorce is the act by which a valid marriage is dissolved, usually freeing the parties to remarry. In regions in (1) ancient (2) authority still predominates, divorce may be (3) and rare, especially when, as among Roman Catholics and Hindus, the religious (4) views marriage (5) indissoluble. Custom, (6) , may make divorce a simple matter in (7) societies. (8) some Pueblo Indian tribes a woman could divorce her husband (9) leaving his moccasins on the doorstep. The (10) of individual determination and mutual (11) are making divorce (12) acceptable in the (13) parts of the world.

Among premodern societies, the rate of marital stability is difficult to (14) (15) the varying definitions of (16) and divorce. It seems to be broadly true (17) wherever divorce is a legal impossibility the wedding is a well-defined event conducted with (18) formality. The (19) principle does not hold true: elaborate marriage ceremonial is quite compatible with high divorce rates. Many anthropologists agree that divorce is generally more permissible in matrilineal societies (20) in patrilineal ones, in which the procreative and sexual rights of the bride are often symbolically transferred to the husband with the payment of bride-price.

2（）

A.religious

B.national

C.federal

D.local

接触网作业车升平台检查项目有哪些？