哺乳期妇女禁用的药有 A．甲氨蝶呤 B．甲巯咪唑 C．甲状腺素 D．甲丙氨酯 E．溴

某投机者卖出2张9月份到期的日元期货合约，每张金额为12500000日元，成交价为0.006835美元／日元，半个月后，该投机者将2张合约买入对冲平仓，成交价为0.007030美元／日元。该笔投机的结果是（）。

A.亏损4875美元

B.赢利4875美元

C.赢利1560美元

D.亏损1560美元

在胸部没有穴位的经脉是（）。

A.手太阴肺经

B.手少阴心经

C.手厥阴心包经

D.足少阴肾经

E.足太阴脾经

染色的其他人纤长丝机织物

参与I型超敏反应的是

A．嗜酸性粒细胞
B．嗜中性粒细胞
C．淋巴细胞
D．树突状细胞
E．红细胞

SDLC was invented by IBM to replace the older Bisynchronous protocol for wide area connections between IBM equipment. A varietion of the (71) protocol called NRM is essentially the same as SDLC. SDLC is (72) protocol like HDLC, Frame Relay or X.25.An SDLC network is made up of (73) that controls all communications, and (74) . It is capable of (75) operation, but almost all practical applications are strictly half duplex.

（73）是（）

A. a primary station

B. one or more primary stations

C. a secondary station

D. one or more secondary stations