语法填空（共10小题；每小题1分，满分10分）

阅读下列短文，按照句子结构的语法性和上下文连贯的要求，填入适当的词或使用括号中词语的正确形式填空。

Taking a taxi in a certain Eastern European country can be a shocking experience. _____1_____ is said that some taxi drivers have metal wires stuck into the passenger seats. And___2____ a button is pushed, the seat will give you _____3____ electric shock. These taxi drivers don’t do this ____4___ fun. They do it to tourists _____5_____ argue about the ridiculous(可笑的，荒谬的) fares they charge. Some drivers charge as much ____6___ ten times the legal fare.

They have a secret switch which makes the meters run faster. If the tourists refuse to pay, ____7____ are really in for a shock.

In one case, a German woman had no ____8____ (choose) but to pay $120 for a $ 20 ride from the airport. She said that she was "really taken for a ride," but what could she do? Besides the electric shock, she _____9_____ (threaten) with physical violence. She has only one piece of advice for tourists, “Take the bus ___10_____ stay at home.”

临床医学研究中的受试者选择原则（）

A.欺骗、威胁、利诱进行医学临床实验违反了道德和法律

B.负担和受益要公正分配

C.受试者与研究者之间应保密

D.死亡家属有权获得赔偿

E.需获得伦理专家委员会（或主管部门）的批准