“人有多大胆，地有多大产”的冒进口号出现在（）时期。

对传染性单核细胞增多症有诊断意义的细胞是

A．原始淋巴细胞

B．幼稚淋巴细胞

C．异型淋巴细胞

D．异常单核细胞

E．成熟小淋巴细胞

其他无环醇的卤化、磺化等衍生物

Passage 2:Hong Kong has about 40 public beaches. Some of the beaches are among the best in the world. People can go there for a swim. You can go to most of them by bus. To go to some of the beaches you must take a boat. There are clothes changing rooms and places to buy food and drink on most of the beaches.You will swim there without danger if you remember these instructions: 1) Never swim alone.2) Never swim after a meal or when you feel hungry or tired.3) Don’t stay in the water too long.4) Never go out in a boat if you can not swim.Remember: A red flag means that it is dangerous for anyone to go into the water. A blue flag means that it is dangerous for children.

You can do many things on the beaches except ________.

A．swimming

B．buying food and drink

C．watching TV

D．changing clothes

胎儿纵轴与母体纵轴垂直称为

A．胎方位
B．胎势
C．横产式
D．胎产式
E．胎先露

关于支护，下列叙述正确的有（）

①对坚硬裂隙岩体中的大断面隧道，通常在长锚杆之间加设短锚杆以支承其间的岩体

②对破碎软弱岩体，要早支护、早封闭、设仰拱、加强支护

③对流塑性围岩宜采用圆形、椭圆形或马蹄形断面，宜“现柔后刚”，设置仰拱，形成全封闭环

④对于浅埋隧道，支护的强度和刚度要大于一般深埋隧道。

A、①②③④

B、①②④

C、②③④

D、①②③