桂林和杭州的市花是桂花。( )

钢丝绳纤维芯损坏或钢芯断裂而造成绳径显著减少，但不影响使用。（）

根据句意，选用was或were完成句子。

1. Lingling's grandparents ______ young then.

2. She ______ two, then.

3. Her hair ______ short, then.

4. Lingling and Amy ______ at home, then.

The value of a leader is something to be felt and experienced.         can it be put into words.

A．Purely

B．Partly

C．Rarely

D．Gradually

盐敏感高血压的临床特点不包括（）

A.盐负荷后血压明显升高

B.血压的昼夜差值缩小

C.血压的应激反应增强

D.有胰岛素抵抗表现

E.左心室重量增加

新装双微机电调在充水后应进行哪些试验？