男孩，7岁。左髋屈曲、外展、外旋位畸形，左下肢肌肉萎缩，跛行步态明显。诊断时首先（）

阅读短文，根据短文内容判断下列句子正误，正确的在前面的括号内写T，错误的写F。

     This is a picture of the twin sisters' room. It is a nice room. Lily's books are on the desk. Her backpack

is on the floor. Liz's pencils are on the books. Her backpack is behind her chair. Their coats are behind the

door. We can't see Lily and Liz in the picture. They're not at home.

( )1. This is a picture of Lily and Liz's room.

( )2. Lily's backpack is behind the chair.

(     )3. Liz's and Lily's coats are on the chair.

(     )4. Lily and Liz are not at home.

(     )5. Their room is nice.

患者女性，25岁，因“心悸、多汗、消瘦1年”来诊。查体：甲状腺Ⅰ度大，质软，无压痛，两侧上极可闻及血管杂音，心率100次/分，心音亢进。

如该患者既往有哮喘史，不宜使用的药物是（）

A.甲巯咪唑

B.卡比马唑

C.丙硫氧嘧啶

D.普萘洛尔

E.复方碘溶液

制备乳剂型基质的软膏剂时，油相与水相的温度一般控制在（）

A.50℃

B.60℃

C.70℃

D.80℃

E.90℃

简述解决死锁问题的三种方法。

（）液压支架设有复位装置。

A、掩护式

B、支撑式

C、支撑掩护式

D、掩护支撑式